####	Title	Difficulty	Tags	Date	Solutions
0381	Insert Delete GetRandom O(1) - Duplicates allowed	Hard	Array, Hash Table, Math, Design, Randomized	2025-12-31	Go Python
0363	Max Sum of Rectangle No Larger Than K	Hard	Array, Binary Search, Matrix, Prefix Sum, Ordered Set	2025-12-31	Go Python
0771	Jewels and Stones	Easy	Hash Table, String	2025-12-30	Go Python
0420	Strong Password Checker	Hard	String, Greedy, Heap (Priority Queue)	2025-12-30	Go Python
0766	Toeplitz Matrix	Easy	Array, Matrix	2025-12-29	Go Python
0336	Palindrome Pairs	Hard	Array, Hash Table, String, Trie	2025-12-29	Go Python
0762	Prime Number of Set Bits in Binary Representation	Easy	Math, Bit Manipulation	2025-12-28	Go Python
0335	Self Crossing	Hard	Array, Math, Geometry	2025-12-28	Go Python
1351	Count Negative Numbers in a Sorted Matrix	Easy	Array, Binary Search, Matrix	2025-12-28	Go Python
0327	Count of Range Sum	Hard	Array, Binary Search, Divide and Conquer, Binary Indexed Tree, Segment Tree, Merge Sort, Ordered Set	2025-12-28	Go Python
0748	Shortest Completing Word	Easy	Array, Hash Table, String	2025-12-27	Go Python
0321	Create Maximum Number	Hard	Array, Two Pointers, Stack, Greedy, Monotonic Stack	2025-12-27	Go Python
0747	Largest Number At Least Twice of Others	Easy	Array, Sorting	2025-12-27	Go Python
0301	Remove Invalid Parentheses	Hard	String, Backtracking, Breadth-First Search	2025-12-27	Go Python
0744	Find Smallest Letter Greater Than Target	Easy	Array, Binary Search	2025-12-26	Go Python
0282	Expression Add Operators	Hard	Math, String, Backtracking	2025-12-26	Go Python
0728	Self Dividing Numbers	Easy	Math	2025-12-25	Go Python
0233	Number of Digit One	Hard	Math, Dynamic Programming, Recursion	2025-12-25	Go Python
3074	Apple Redistribution into Boxes	Easy	Array, Greedy, Sorting	2025-12-24	Go Python
0218	The Skyline Problem	Hard	Array, Divide and Conquer, Binary Indexed Tree, Segment Tree, Line Sweep, Sorting, Heap (Priority Queue), Ordered Set	2025-12-24	Go Python
0709	To Lower Case	Easy	String	2025-12-23	Go Python
0154	Find Minimum in Rotated Sorted Array II	Hard	Array, Binary Search	2025-12-23	Go Python
0697	Degree of an Array	Easy	Array, Hash Table	2025-12-22	Go Python
0960	Delete Columns to Make Sorted III	Hard	Array, String, Dynamic Programming	2025-12-22	Go Python
0696	Count Binary Substrings	Easy	Two Pointers, String	2025-12-21	Go Python
0065	Valid Number	Hard	String	2025-12-21	Go Python
0693	Binary Number with Alternating Bits	Easy	Bit Manipulation	2025-12-21	Go Python
0044	Wildcard Matching	Hard	String, Dynamic Programming, Greedy, Recursion	2025-12-21	Go Python
0944	Delete Columns to Make Sorted	Easy	Array, String	2025-12-20	Go Python
0132	Palindrome Partitioning II	Hard	String, Dynamic Programming	2025-12-20	Go Python
0682	Baseball Game	Easy	Array, Stack, Simulation	2025-12-20	Go Python
1377	Frog Position After T Seconds	Hard	Tree, Depth-First Search, Breadth-First Search, Graph	2025-12-20	Go Python
0674	Longest Continuous Increasing Subsequence	Easy	Array	2025-12-19	Go Python
2509	Cycle Length Queries in a Tree	Hard	Array, Tree, Binary Tree	2025-12-19	Go Python
0671	Second Minimum Node In a Binary Tree	Easy	Tree, Depth-First Search, Binary Tree	2025-12-18	Go Python
0847	Shortest Path Visiting All Nodes	Hard	Dynamic Programming, Bit Manipulation, Breadth-First Search, Graph, Bitmask	2025-12-18	Go Python
0661	Image Smoother	Easy	Array, Matrix	2025-12-17	Go Python
1203	Sort Items by Groups Respecting Dependencies	Hard	Depth-First Search, Breadth-First Search, Graph, Topological Sort	2025-12-17	Go Python
0653	Two Sum IV - Input is a BST	Easy	Hash Table, Two Pointers, Tree, Depth-First Search, Breadth-First Search, Binary Search Tree, Binary Tree	2025-12-16	Go Python
3562	Maximum Profit from Trading Stocks with Discounts	Hard	Array, Dynamic Programming, Tree, Depth-First Search	2025-12-16	Go Python
0645	Set Mismatch	Easy	Array, Hash Table, Bit Manipulation, Sorting	2025-12-15	Go Python
0753	Cracking the Safe	Hard	Depth-First Search, Graph, Eulerian Circuit	2025-12-15	Go Python
2242	Maximum Score of a Node Sequence	Hard	Array, Graph, Sorting, Enumeration	2025-12-14	Go Python
0637	Average of Levels in Binary Tree	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2025-12-14	Go Python
0087	Scramble String	Hard	String, Dynamic Programming	2025-12-14	Go Python
0628	Maximum Product of Three Numbers	Easy	Array, Math, Sorting	2025-12-14	Go Python
1928	Minimum Cost to Reach Destination in Time	Hard	Array, Dynamic Programming, Graph	2025-12-13	Go Python
3606	Coupon Code Validator	Easy	Array, Hash Table, String, Sorting	2025-12-13	Go Python
1697	Checking Existence of Edge Length Limited Paths	Hard	Array, Two Pointers, Union Find, Graph, Sorting	2025-12-13	Go Python
0599	Minimum Index Sum of Two Lists	Easy	Array, Hash Table, String	2025-12-13	Go Python
1761	Minimum Degree of a Connected Trio in a Graph	Hard	Graph, Enumeration	2025-12-12	Go Python
0598	Range Addition II	Easy	Array, Math	2025-12-12	Go Python
2035	Partition Array Into Two Arrays to Minimize Sum Difference	Hard	Array, Two Pointers, Binary Search, Dynamic Programming, Bit Manipulation, Ordered Set, Bitmask	2025-12-11	Go Python
0575	Distribute Candies	Easy	Array, Hash Table	2025-12-11	Go Python
2111	Minimum Operations to Make the Array K-Increasing	Hard	Array, Binary Search	2025-12-10	Go Python
0566	Reshape the Matrix	Easy	Array, Matrix, Simulation	2025-12-10	Go Python
0828	Count Unique Characters of All Substrings of a Given String	Hard	Hash Table, String, Dynamic Programming	2025-12-09	Go Python
0563	Binary Tree Tilt	Easy	Tree, Depth-First Search, Binary Tree	2025-12-09	Go Python
0354	Russian Doll Envelopes	Hard	Array, Binary Search, Dynamic Programming, Sorting	2025-12-08	Go Python
1925	Count Square Sum Triples	Easy	Math, Enumeration	2025-12-08	Go Python
1192	Critical Connections in a Network	Hard	Depth-First Search, Graph, Biconnected Component	2025-12-07	Go Python
0188	Best Time to Buy and Sell Stock IV	Hard	Array, Dynamic Programming	2025-12-07	Go Python
0530	Minimum Absolute Difference in BST	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Search Tree, Binary Tree	2025-12-07	Go Python
0521	Longest Uncommon Subsequence I	Easy	String	2025-12-07	Go Python
0987	Vertical Order Traversal of a Binary Tree	Hard	Hash Table, Tree, Depth-First Search, Breadth-First Search, Sorting, Binary Tree	2025-12-06	Go Python
1044	Longest Duplicate Substring	Hard	String, Binary Search, Sliding Window, Rolling Hash, Suffix Array, Hash Function	2025-12-06	Go Python
0507	Perfect Number	Easy	Math	2025-12-06	Go Python
0504	Base 7	Easy	Math, String	2025-12-06	Go Python
3448	Count Substrings Divisible By Last Digit	Hard	String, Dynamic Programming	2025-12-05	Go Python
3432	Count Partitions with Even Sum Difference	Easy	Array, Math, Prefix Sum	2025-12-05	Go Python
3017	Count the Number of Houses at a Certain Distance II	Hard	Graph, Prefix Sum	2025-12-04	Go Python
0405	Convert a Number to Hexadecimal	Easy	Math, String, Bit Manipulation	2025-12-04	Go Python
0501	Find Mode in Binary Search Tree	Easy	Tree, Depth-First Search, Binary Search Tree, Binary Tree	2025-12-03	Go Python
3625	Count Number of Trapezoids II	Hard	Array, Hash Table, Math, Geometry	2025-12-03	Go Python
2569	Handling Sum Queries After Update	Hard	Array, Segment Tree	2025-12-02	Go Python
0401	Binary Watch	Easy	Backtracking, Bit Manipulation	2025-12-02	Go Python
0495	Teemo Attacking	Easy	Array, Simulation	2025-12-01	Go Python
2141	Maximum Running Time of N Computers	Hard	Array, Binary Search, Greedy, Sorting	2025-12-01	Go Python
0561	Array Partition	Easy	Array, Greedy, Sorting, Counting Sort	2025-11-30	Go Python
3463	Check If Digits Are Equal in String After Operations II	Hard	Math, String, Combinatorics, Number Theory	2025-11-30	Go Python
3036	Number of Subarrays That Match a Pattern II	Hard	Array, Rolling Hash, String Matching, Hash Function	2025-11-30	Go Python
0345	Reverse Vowels of a String	Easy	Two Pointers, String	2025-11-30	Go Python
0559	Maximum Depth of N-ary Tree	Easy	Tree, Depth-First Search, Breadth-First Search	2025-11-29	Go Python
3455	Shortest Matching Substring	Hard	Two Pointers, String, Binary Search, String Matching	2025-11-29	Go Python
3031	Minimum Time to Revert Word to Initial State II	Hard	String, Rolling Hash, String Matching, Hash Function	2025-11-29	Go Python
3512	Minimum Operations to Make Array Sum Divisible by K	Easy	Array, Math	2025-11-29	Go Python
3378	Count Connected Components in LCM Graph	Hard	Array, Hash Table, Math, Union Find, Number Theory	2025-11-28	Go Python
0485	Max Consecutive Ones	Easy	Array	2025-11-28	Go Python
3139	Minimum Cost to Equalize Array	Hard	Array, Greedy, Enumeration	2025-11-27	Go Python
0455	Assign Cookies	Easy	Array, Two Pointers, Greedy, Sorting	2025-11-27	Go Python
3116	Kth Smallest Amount With Single Denomination Combination	Hard	Array, Math, Binary Search, Bit Manipulation, Combinatorics, Number Theory	2025-11-26	Go Python
0263	Ugly Number	Easy	Math	2025-11-26	Go Python
3117	Minimum Sum of Values by Dividing Array	Hard	Array, Binary Search, Dynamic Programming, Bit Manipulation, Segment Tree, Queue	2025-11-25	Go Python
0228	Summary Ranges	Easy	Array	2025-11-25	Go Python
3102	Minimize Manhattan Distances	Hard	Array, Math, Geometry, Sorting, Ordered Set	2025-11-24	Go Python
1018	Binary Prefix Divisible By 5	Easy	Array, Bit Manipulation	2025-11-24	Go Python
0492	Construct the Rectangle	Easy	Math	2025-11-23	Go Python
3082	Find the Sum of the Power of All Subsequences	Hard	Array, Dynamic Programming	2025-11-23	Go Python
3077	Maximum Strength of K Disjoint Subarrays	Hard	Array, Dynamic Programming, Prefix Sum	2025-11-23	Go Python
0226	Invert Binary Tree	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2025-11-23	Go Python
0448	Find All Numbers Disappeared in an Array	Easy	Array, Hash Table	2025-11-22	Go Python
1569	Number of Ways to Reorder Array to Get Same BST	Hard	Array, Math, Divide and Conquer, Dynamic Programming, Tree, Union Find, Binary Search Tree, Memoization, Combinatorics, Binary Tree	2025-11-22	Go Python
3209	Number of Subarrays With AND Value of K	Hard	Array, Binary Search, Bit Manipulation, Segment Tree	2025-11-22	Go Python
3190	Find Minimum Operations to Make All Elements Divisible by Three	Easy	Array, Math	2025-11-22	Go Python
3181	Maximum Total Reward Using Operations II	Hard	Array, Dynamic Programming, Bit Manipulation	2025-11-21	Go Python
0441	Arranging Coins	Easy	Math, Binary Search	2025-11-21	Go Python
0415	Add Strings	Easy	Math, String, Simulation	2025-11-20	Go Python
0757	Set Intersection Size At Least Two	Hard	Array, Greedy, Sorting	2025-11-20	Go Python
0864	Shortest Path to Get All Keys	Hard	Array, Bit Manipulation, Breadth-First Search, Matrix	2025-11-19	Go Python
2154	Keep Multiplying Found Values by Two	Easy	Array, Hash Table, Sorting, Simulation	2025-11-19	Go Python
3444	Minimum Increments for Target Multiples in an Array	Hard	Array, Math, Dynamic Programming, Bit Manipulation, Number Theory, Bitmask	2025-11-18	Go Python
0717	1-bit and 2-bit Characters	Easy	Array	2025-11-18	Go Python
3398	Smallest Substring With Identical Characters I	Hard	Array, Binary Search, Enumeration	2025-11-17	Go Python
1437	Check If All 1's Are at Least Length K Places Away	Easy	Array	2025-11-17	Go Python
0414	Third Maximum Number	Easy	Array, Sorting	2025-11-16	Go Python
3399	Smallest Substring With Identical Characters II	Hard	Binary Search, Greedy, String	2025-11-16	Go Python
0292	Nim Game	Easy	Math, Brainteaser, Game Theory	2025-11-16	Go Python
3171	Find Subarray With Bitwise OR Closest to K	Hard	Array, Binary Search, Bit Manipulation, Segment Tree	2025-11-16	Go Python
0202	Happy Number	Easy	Hash Table, Math, Two Pointers	2025-11-15	Go Python
3008	Find Beautiful Indices in the Given Array II	Hard	Two Pointers, String, Binary Search, Rolling Hash, String Matching, Hash Function	2025-11-15	Go Python
0171	Excel Sheet Column Number	Easy	Math, String	2025-11-15	Go Python
1575	Count All Possible Routes	Hard	Array, Dynamic Programming, Memoization	2025-11-15	Go Python
0169	Majority Element	Easy	Array, Hash Table, Divide and Conquer, Sorting, Counting	2025-11-14	Go Python
1187	Make Array Strictly Increasing	Hard	Array, Binary Search, Dynamic Programming, Sorting	2025-11-14	Go Python
0956	Tallest Billboard	Hard	Array, Dynamic Programming	2025-11-13	Go Python
0168	Excel Sheet Column Title	Easy	Math, String	2025-11-13	Go Python
0160	Intersection of Two Linked Lists	Easy	Hash Table, Linked List, Two Pointers	2025-11-12	Go Python
3229	Minimum Operations to Make Array Equal to Target	Hard	Array, Dynamic Programming, Stack, Greedy, Monotonic Stack	2025-11-12	Go Python
0144	Binary Tree Preorder Traversal	Easy	Stack, Tree, Depth-First Search, Binary Tree	2025-11-11	Go Python
3219	Minimum Cost for Cutting Cake II	Hard	Array, Greedy, Sorting	2025-11-11	Go Python
0119	Pascal's Triangle II	Easy	Array, Dynamic Programming	2025-11-10	Go Python
2589	Minimum Time to Complete All Tasks	Hard	Array, Binary Search, Stack, Greedy, Sorting	2025-11-10	Go Python
2169	Count Operations to Obtain Zero	Easy	Math, Simulation	2025-11-09	Go Python
0110	Balanced Binary Tree	Easy	Tree, Depth-First Search, Binary Tree	2025-11-08	Go Python
2528	Maximize the Minimum Powered City	Hard	Array, Binary Search, Greedy, Queue, Sliding Window, Prefix Sum	2025-11-07	Go Python
2366	Minimum Replacements to Sort the Array	Hard	Array, Math, Greedy	2025-11-06	Go Python
3321	Find X-Sum of All K-Long Subarrays II	Hard	Array, Hash Table, Sliding Window, Heap (Priority Queue)	2025-11-05	Go Python
3318	Find X-Sum of All K-Long Subarrays I	Easy	Array, Hash Table, Sliding Window, Heap (Priority Queue)	2025-11-04	Go Python
1578	Minimum Time to Make Rope Colorful	Medium	Array, String, Dynamic Programming, Greedy	2025-11-03	Go Python
1402	Reducing Dishes	Hard	Array, Dynamic Programming, Greedy, Sorting	2025-11-02	Go Python
1326	Minimum Number of Taps to Open to Water a Garden	Hard	Array, Dynamic Programming, Greedy	2025-11-01	Go Python
3289	The Two Sneaky Numbers of Digitville	Easy	Array, Hash Table, Math	2025-10-31	Go Python
1526	Minimum Number of Increments on Subarrays to Form a Target Array	Hard	Array, Dynamic Programming, Stack, Greedy, Monotonic Stack	2025-10-30	Go Python
3370	Smallest Number With All Set Bits	Easy	Math, Bit Manipulation	2025-10-29	Go Python
3354	Make Array Elements Equal to Zero	Easy	Array, Simulation, Prefix Sum	2025-10-28	Go Python
3367	Maximize Sum of Weights after Edge Removals	Hard	Dynamic Programming, Tree, Depth-First Search	2025-10-27	Go Python
3425	Longest Special Path	Hard	Array, Hash Table, Tree, Depth-First Search, Prefix Sum	2025-10-26	Go Python
1716	Calculate Money in Leetcode Bank	Easy	Math	2025-10-25	Go Python
3351	Sum of Good Subsequences	Hard	Array, Hash Table, Dynamic Programming	2025-10-25	Go Python
3352	Count K-Reducible Numbers Less Than N	Hard	Math, String, Dynamic Programming, Combinatorics	2025-10-24	Go Python
3461	Check If Digits Are Equal in String After Operations I	Easy	Math, String, Simulation, Combinatorics, Number Theory	2025-10-23	Go Python
3347	Maximum Frequency of an Element After Performing Operations II	Hard	Array, Binary Search, Sliding Window, Sorting, Prefix Sum	2025-10-22	Go Python
3213	Construct String with Minimum Cost	Hard	Array, String, Dynamic Programming, Suffix Array	2025-10-21	Go Python
3193	Count the Number of Inversions	Hard	Array, Dynamic Programming	2025-10-20	Go Python
2011	Final Value of Variable After Performing Operations	Easy	Array, String, Simulation	2025-10-20	Go Python
3177	Find the Maximum Length of a Good Subsequence II	Hard	Array, Hash Table, Dynamic Programming	2025-10-19	Go Python
3130	Find All Possible Stable Binary Arrays II	Hard	Dynamic Programming, Prefix Sum	2025-10-18	Go Python
3003	Maximize the Number of Partitions After Operations	Hard	String, Dynamic Programming, Bit Manipulation, Bitmask	2025-10-17	Go Python
3098	Find the Sum of Subsequence Powers	Hard	Array, Dynamic Programming, Sorting	2025-10-16	Go Python
3041	Maximize Consecutive Elements in an Array After Modification	Hard	Array, Dynamic Programming, Sorting	2025-10-15	Go Python
1312	Minimum Insertion Steps to Make a String Palindrome	Hard	String, Dynamic Programming	2025-10-14	Go Python
3349	Adjacent Increasing Subarrays Detection I	Easy	Array	2025-10-14	Go Python
0403	Frog Jump	Hard	Array	2025-10-13	Go Python
2273	Find Resultant Array After Removing Anagrams	Easy	Array, Hash Table, String, Sorting	2025-10-13	Go Python
3539	Find Sum of Array Product of Magical Sequences	Hard	Array, Math, Dynamic Programming, Bit Manipulation, Combinatorics, Bitmask	2025-10-12	Go Python
1416	Restore The Array	Hard	String, Dynamic Programming	2025-10-11	Go Python
1444	Number of Ways of Cutting a Pizza	Hard	Array, Dynamic Programming, Memoization, Matrix, Prefix Sum	2025-10-10	Go Python
1125	Smallest Sufficient Team	Hard	Array, Dynamic Programming, Bit Manipulation, Bitmask	2025-10-09	Go Python
3123	Find Edges in Shortest Paths	Hard	Depth-First Search, Breadth-First Search, Graph, Heap (Priority Queue), Shortest Path	2025-10-08	Go Python
2642	Design Graph With Shortest Path Calculator	Hard	Graph, Design, Heap (Priority Queue), Shortest Path	2025-10-07	Go Python
2360	Longest Cycle in a Graph	Hard	Depth-First Search, Breadth-First Search, Graph, Topological Sort	2025-10-06	Go Python
1293	Shortest Path in a Grid with Obstacles Elimination	Hard	Array, Breadth-First Search, Matrix	2025-10-05	Go Python
0839	Similar String Groups	Hard	Array, Hash Table, String, Depth-First Search, Breadth-First Search, Union Find	2025-10-04	Go Python
0815	Bus Routes	Hard	Array, Hash Table, Breadth-First Search	2025-10-03	Go Python
1970	Last Day Where You Can Still Cross	Hard	Array, Binary Search, Depth-First Search, Breadth-First Search, Union Find, Matrix	2025-10-02	Go Python
3187	Peaks in Array	Hard	Array, Binary Indexed Tree, Segment Tree	2025-10-01	Go Python
2221	Find Triangular Sum of an Array	Medium	Array, Math, Simulation, Combinatorics	2025-09-30	Go Python
1039	Minimum Score Triangulation of Polygon	Medium	Array, Dynamic Programming	2025-09-29	Go Python
0976	Largest Perimeter Triangle	Easy	Array, Math, Greedy, Sorting	2025-09-28	Go Python
0812	Largest Triangle Area	Easy	Array, Math, Geometry	2025-09-27	Go Python
0611	Valid Triangle Number	Medium	Array, Two Pointers, Binary Search, Greedy, Sorting	2025-09-26	Go Python
0120	Triangle	Medium	Array, Dynamic Programming	2025-09-25	Go Python
0166	Fraction to Recurring Decimal	Medium	Hash Table, Math, String	2025-09-24	Go Python
0088	Merge Sorted Array	Easy	Array, Two Pointers, Sorting	2025-09-23	Go Python
3005	Count Elements With Maximum Frequency	Easy	Array, Hash Table, Counting	2025-09-22	Go Python
1912	Design Movie Rental System	Hard	Array, Hash Table, Design, Heap (Priority Queue), Ordered Set	2025-09-21	Go Python
3508	Implement Router	Medium	Array, Hash Table, Binary Search, Design, Queue, Ordered Set	2025-09-20	Go Python
3484	Design Spreadsheet	Medium	Array, Hash Table, String, Design, Matrix	2025-09-19	Go Python
3408	Design Task Manager	Medium	Hash Table, Design, Heap (Priority Queue), Ordered Set	2025-09-18	Go Python
2353	Design a Food Rating System	Medium	Array, Hash Table, String, Design, Heap (Priority Queue), Ordered Set	2025-09-17	Go Python
2197	Replace Non-Coprime Numbers in Array	Hard	Array, Math, Stack, Number Theory	2025-09-16	Go Python
1935	Maximum Number of Words You Can Type	Easy	Hash Table, String	2025-09-15	Go Python
0966	Vowel Spellchecker	Medium	Array, Hash Table, String	2025-09-14	Go Python
3541	Find Most Frequent Vowel and Consonant	Easy	Hash Table, String, Counting	2025-09-13	Go Python
3227	Vowels Game in a String	Medium	Math, String, Brainteaser, Game Theory	2025-09-12	Go Python
2785	Sort Vowels in a String	Medium	String, Sorting	2025-09-11	Go Python
1733	Minimum Number of People to Teach	Medium	Array, Hash Table, Greedy	2025-09-10	Go Python
2327	Number of People Aware of a Secret	Medium	Dynamic Programming, Queue, Simulation	2025-09-09	Go Python
1317	Convert Integer to the Sum of Two No-Zero Integers	Easy	Math	2025-09-08	Go Python
1304	Find N Unique Integers Sum up to Zero	Easy	Array, Math	2025-09-07	Go Python
3495	Minimum Operations to Make Array Elements Zero	Hard	Array, Math, Bit Manipulation	2025-09-06	Go Python
2749	Minimum Operations to Make the Integer Zero	Medium	Bit Manipulation, Brainteaser, Enumeration	2025-09-05	Go Python
3516	Find Closest Person	Easy	Math	2025-09-04	Go Python
3027	Find the Number of Ways to Place People II	Hard	Array, Math, Geometry, Sorting, Enumeration	2025-09-03	Go Python
3025	Find the Number of Ways to Place People I	Medium	Array, Math, Geometry, Sorting, Enumeration	2025-09-02	Go Python
1792	Maximum Average Pass Ratio	Medium	Array, Greedy, Heap (Priority Queue)	2025-09-01	Go Python
3161	Block Placement Queries	Hard	Array, Binary Search, Binary Indexed Tree, Segment Tree	2025-08-31	Go Python
0036	Valid Sudoku	Medium	Array, Hash Table, Matrix	2025-08-30	Go Python
3021	Alice and Bob Playing Flower Game	Medium	Math	2025-08-29	Go Python
3072	Distribute Elements Into Two Arrays II	Hard	Array, Binary Indexed Tree, Segment Tree, Simulation	2025-08-28	Go Python
3446	Sort Matrix by Diagonals	Medium	Array, Sorting, Matrix	2025-08-28	Go Python
3459	Length of Longest V-Shaped Diagonal Segment	Hard	Array, Dynamic Programming, Memoization, Matrix	2025-08-27	Go Python
3000	Maximum Area of Longest Diagonal Rectangle	Easy	Array	2025-08-26	Go Python
0498	Diagonal Traverse	Medium	Array, Matrix, Simulation	2025-08-25	Go Python
1493	Longest Subarray of 1's After Deleting One Element	Medium	Array, Dynamic Programming, Sliding Window	2025-08-24	Go Python
3197	Find the Minimum Area to Cover All Ones II	Hard	Array, Matrix, Enumeration	2025-08-23	Go Python
3195	Find the Minimum Area to Cover All Ones I	Medium	Array, Matrix	2025-08-22	Go Python
1504	Count Submatrices With All Ones	Medium	Array, Dynamic Programming, Stack, Matrix, Monotonic Stack	2025-08-21	Go Python
1277	Count Square Submatrices with All Ones	Medium	Array, Dynamic Programming, Matrix	2025-08-20	Go Python
2348	Number of Zero-Filled Subarrays	Medium	Array, Math	2025-08-19	Go Python
0679	24 Game	Hard	Array, Math, Backtracking	2025-08-18	Go Python
0837	New 21 Game	Medium	Math, Dynamic Programming, Sliding Window, Probability and Statistics	2025-08-17	Go Python
1323	Maximum 69 Number	Easy	Math, Greedy	2025-08-16	Go Python
2532	Time to Cross a Bridge	Hard	Array, Heap (Priority Queue), Simulation	2025-08-15	Go Python
2264	Largest 3-Same-Digit Number in String	Easy	String	2025-08-14	Go Python
0326	Power of Three	Easy	Math, Recursion	2025-08-13	Go Python
2787	Ways to Express an Integer as Sum of Powers	Medium	Dynamic Programming	2025-08-12	Go Python
2438	Range Product Queries of Powers	Medium	Array, Bit Manipulation, Prefix Sum	2025-08-11	Go Python
0869	Reordered Power of 2	Medium	Hash Table, Math, Sorting, Counting, Enumeration	2025-08-10	Go Python
2867	Count Valid Paths in a Tree	Hard	Math, Dynamic Programming, Tree, Depth-First Search, Number Theory	2025-08-09	Go Python
0808	Soup Servings	Medium	Math, Dynamic Programming, Probability and Statistics	2025-08-08	Go Python
3363	Find the Maximum Number of Fruits Collected	Hard	Array, Dynamic Programming, Matrix	2025-08-07	Go Python
3479	Fruits Into Baskets III	Medium	Array, Binary Search, Segment Tree, Ordered Set	2025-08-06	Go Python
3477	Fruits Into Baskets II	Easy	Array, Binary Search, Segment Tree, Simulation, Ordered Set	2025-08-05	Go Python
2508	Add Edges to Make Degrees of All Nodes Even	Hard	Hash Table, Graph	2025-08-05	Go Python
0904	Fruit Into Baskets	Medium	Array, Hash Table, Sliding Window	2025-08-04	Go Python
0083	Remove Duplicates from Sorted List	Easy	Linked List	2025-08-03	Go Python
2561	Rearranging Fruits	Hard	Array, Hash Table, Greedy, Sort	2025-08-02	Go Python
2065	Maximum Path Quality of a Graph	Hard	Array, Backtracking, Graph	2025-08-01	Go Python
0898	Bitwise ORs of Subarrays	Medium	Array, Dynamic Programming, Bit Manipulation	2025-07-31	Go Python
2419	Longest Subarray With Maximum Bitwise AND	Medium	Array, Bit Manipulation, Brainteaser	2025-07-30	Go Python
2411	Smallest Subarrays With Maximum Bitwise OR	Medium	Array, Binary Search, Bit Manipulation, Sliding Window	2025-07-29	Go Python
2044	Count Number of Maximum Bitwise-OR Subsets	Medium	Array, Backtracking, Bit Manipulation, Enumeration	2025-07-28	Go Python
2210	Count Hills and Valleys in an Array	Easy	Array	2025-07-27	Go Python
3480	Maximize Subarrays After Removing One Conflicting Pair	Hard	Array, Segment Tree, Enumeration, Prefix Sum	2025-07-26	Go Python
3487	Maximum Unique Subarray Sum After Deletion	Easy	Array, Hash Table, Greedy	2025-07-25	Go Python
2322	Minimum Score After Removals on a Tree	Hard	Array, Bit Manipulation, Tree, Depth-First Search	2025-07-24	Go Python
1672	Richest Customer Wealth	Easy	Array, Matrix	2025-07-23	Go Python
1695	Maximum Erasure Value	Medium	Array, Hash Table, Sliding Window	2025-07-22	Go Python
1480	Running Sum of 1d Array	Easy	Array, Prefix Sum	2025-07-21	Go Python
1948	Delete Duplicate Folders in System	Hard	Array, Hash Table, String, Trie, Hash Function	2025-07-20	Go Python
1233	Remove Sub-Folders from the Filesystem	Medium	Array, String, Depth-First Search, Trie	2025-07-19	Go Python
2163	Minimum Difference in Sums After Removal of Elements	Hard	Array, Dynamic Programming, Heap (Priority Queue)	2025-07-18	Go Python
3202	Find the Maximum Length of Valid Subsequence II	Medium	Array, Dynamic Programming	2025-07-17	Go Python
3201	Find the Maximum Length of Valid Subsequence I	Medium	Array, Dynamic Programming	2025-07-16	Go Python
3136	Valid Word	Easy	String	2025-07-15	Go Python
1290	Convert Binary Number in a Linked List to Integer	Easy	Linked List, Math	2025-07-14	Go Python
2410	Maximum Matching of Players With Trainers	Medium	Array, Two Pointers, Greedy, Sorting	2025-07-13	Go Python
1900	The Earliest and Latest Rounds Where Players Compete	Hard	Dynamic Programming, Memoization	2025-07-12	Go Python
1342	Number of Steps to Reduce a Number to Zero	Easy	Math, Bit Manipulation	2025-07-11	Go Python
3440	Reschedule Meetings for Maximum Free Time II	Medium	Array, Greedy, Enumeration	2025-07-10	Go Python
3439	Reschedule Meetings for Maximum Free Time I	Medium	Array, Greedy, Sliding Window	2025-07-09	Go Python
1337	The K Weakest Rows in a Matrix	Easy	Array, Binary Search, Sorting, Heap (Priority Queue), Matrix	2025-07-08	Go Python
1353	Maximum Number of Events That Can Be Attended	Medium	Array, Greedy, Sorting, Heap (Priority Queue)	2025-07-07	Go Python
1865	Finding Pairs With a Certain Sum	Medium	Array, Hash Table, Design	2025-07-06	Go Python
1394	Find Lucky Integer in an Array	Easy	Array, Hash Table, Counting	2025-07-05	Go Python
3307	Find the K-th Character in String Game II	Hard	Math, Bit Manipulation, Recursion	2025-07-04	Go Python
3304	Find the K-th Character in String Game I	Easy	Math, Bit Manipulation, Recursion, Simulation	2025-07-03	Go Python
3333	Find the Original Typed String II	Hard	String, Dynamic Programming, Prefix Sum	2025-07-02	Go Python
3330	Find the Original Typed String I	Easy	String	2025-07-01	Go Python
0594	Longest Harmonious Subsequence	Easy	Array, Hash Table, Sliding Window, Sorting, Counting	2025-06-30	Go Python
1498	Number of Subsequences That Satisfy the Given Sum Condition	Medium	Array, Two Pointers, Binary Search, Sorting	2025-06-29	Go Python
2099	Find Subsequence of Length K With the Largest Sum	Easy	Array, Hash Table, Sorting, Heap (Priority Queue)	2025-06-28	Go Python
2014	Longest Subsequence Repeated k Times	Hard	String, Backtracking, Greedy, Counting, Enumeration	2025-06-27	Go Python
2311	Longest Binary Subsequence Less Than or Equal to K	Medium	String, Dynamic Programming, Greedy, Memoization	2025-06-26	Go Python
2040	Kth Smallest Product of Two Sorted Arrays	Hard	Array, Binary Search	2025-06-25	Go Python
2200	Find All K-Distant Indices in an Array	Easy	Array, Two Pointers	2025-06-24	Go Python
2081	Sum of k-Mirror Numbers	Hard	Math, Enumeration	2025-06-23	Go Python
2138	Divide a String Into Groups of Size k	Easy	String, Simulation	2025-06-22	Go Python
3085	Minimum Deletions to Make String K-Special	Medium	Hash Table, String, Greedy, Sorting, Counting	2025-06-21	Go Python
3443	Maximum Manhattan Distance After K Changes	Medium	Hash Table, Math, String, Counting	2025-06-20	Go Python
2294	Partition Array Such That Maximum Difference Is K	Medium	Array, Greedy, Sorting	2025-06-19	Go Python
2966	Divide Array Into Arrays With Max Difference	Medium	Array, Greedy, Sorting	2025-06-18	Go Python
0824	Goat Latin	Easy	String	2025-06-17	Go Python
2016	Maximum Difference Between Increasing Elements	Easy	Array	2025-06-16	Go Python
1432	Max Difference You Can Get From Changing an Integer	Medium	Math, Greedy	2025-06-15	Go Python
2566	Maximum Difference by Remapping a Digit	Easy	Math, Greedy	2025-06-14	Go Python
2616	Minimize the Maximum Difference of Pairs	Medium	Array, Binary Search, Greedy	2025-06-13	Go Python
3423	Maximum Difference Between Adjacent Elements in a Circular Array	Easy	Array	2025-06-12	Go Python
3445	Maximum Difference Between Even and Odd Frequency II	Hard	String, Sliding Window, Enumeration, Prefix Sum	2025-06-11	Go Python
3442	Maximum Difference Between Even and Odd Frequency I	Easy	Hash Table, String, Counting	2025-06-10	Go Python
0657	Robot Return to Origin	Easy	String, Simulation	2025-06-09	Go Python
0386	Lexicographical Numbers	Medium	Depth-First Search, Trie	2025-06-08	Go Python
3170	Lexicographically Minimum String After Removing Stars	Medium	Hash Table, String, Stack, Greedy, Heap (Priority Queue)	2025-06-07	Go Python
2434	Using a Robot to Print the Lexicographically Smallest String	Medium	Hash Table, String, Stack, Greedy	2025-06-06	Go Python
1061	Lexicographically Smallest Equivalent String	Medium	String, Union Find	2025-06-05	Go Python
3403	Find the Lexicographically Largest String From the Box I	Medium	Two Pointers, String, Enumeration	2025-06-04	Go Python
1298	Maximum Candies You Can Get from Boxes	Hard	Array, Breadth-First Search, Graph	2025-06-03	Go Python
0135	Candy	Hard	Array, Greedy	2025-06-02	Go Python
2929	Distribute Candies Among Children II	Medium	Math, Combinatorics, Enumeration	2025-06-01	Go Python
0909	Snakes and Ladders	Medium	Array, Breadth-First Search, Matrix	2025-05-31	Go Python
2359	Find Closest Node to Given Two Nodes	Medium	Depth-First Search, Graph	2025-05-30	Go Python
3373	Maximize the Number of Target Nodes After Connecting Trees II	Hard	Tree, Depth-First Search, Breadth-First Search	2025-05-29	Go Python
3372	Maximize the Number of Target Nodes After Connecting Trees I	Medium	Tree, Depth-First Search, Breadth-First Search	2025-05-28	Go Python
2894	Divisible and Non-divisible Sums Difference	Easy	Math	2025-05-27	Go Python
0520	Detect Capital	Easy	String	2025-05-26	Go Python
2131	Longest Palindrome by Concatenating Two Letter Words	Medium	Array, Hash Table, String, Greedy, Counting	2025-05-25	Go Python
2942	Find Words Containing Character	Easy	Array, String	2025-05-24	Go Python
2973	Find Number of Coins to Place in Tree Nodes	Hard	Dynamic Programming, Tree, Depth-First Search, Sorting, Heap (Priority Queue)	2025-05-23	Go Python
3362	Zero Array Transformation III	Medium	Array, Greedy, Sorting, Heap (Priority Queue), Prefix Sum	2025-05-22	Go Python
1434	Number of Ways to Wear Different Hats to Each Other	Hard	Array, Dynamic Programming, Bit Manipulation, Bitmask	2025-05-21	Go Python
3355	Zero Array Transformation I	Medium	Array, Prefix Sum	2025-05-20	Go Python
3024	Type of Triangle	Easy	Array, Math, Sorting	2025-05-19	Go Python
1931	Painting a Grid With Three Different Colors	Hard	Dynamic Programming	2025-05-18	Go Python
0500	Keyboard Row	Easy	Array, Hash Table, String	2025-05-17	Go Python
2901	Longest Unequal Adjacent Groups Subsequence II	Medium	Array, String, Dynamic Programming	2025-05-16	Go Python
2900	Longest Unequal Adjacent Groups Subsequence I	Easy	Array, String, Dynamic Programming, Greedy	2025-05-15	Go Python
3337	Total Characters in String After Transformations II	Hard	Hash Table, Math, String, Dynamic Programming, Counting	2025-05-14	Go Python
3335	Total Characters in String After Transformations I	Medium	Hash Table, Math, String, Dynamic Programming, Counting	2025-05-13	Go Python
2094	Finding 3-Digit Even Numbers	Easy	Array, Hash Table, Sorting, Enumeration	2025-05-12	Go Python
0482	License Key Formatting	Easy	String	2025-05-11	Go Python
2918	Minimum Equal Sum of Two Arrays After Replacing Zeros	Medium	Array, Greedy	2025-05-10	Go Python
3343	Count Number of Balanced Permutations	Hard	Math, String, Dynamic Programming, Combinatorics	2025-05-09	Go Python
3342	Find Minimum Time to Reach Last Room II	Medium	Array, Graph, Heap (Priority Queue), Matrix, Shortest Path	2025-05-08	Go Python
3341	Find Minimum Time to Reach Last Room I	Medium	Array, Graph, Heap (Priority Queue), Matrix, Shortest Path	2025-05-07	Go Python
1920	Build Array from Permutation	Easy	Array, Simulation	2025-05-06	Go Python
0790	Domino and Tromino Tiling	Medium	Dynamic Programming	2025-05-05	Go Python
1128	Number of Equivalent Domino Pairs	Easy	Array, Hash Table, Counting	2025-05-04	Go Python
1007	Minimum Domino Rotations For Equal Row	Medium	Array, Greedy	2025-05-03	Go Python
0838	Push Dominoes	Medium	Two Pointers, String, Dynamic Programming	2025-05-02	Go Python
2071	Maximum Number of Tasks You Can Assign	Hard	Array, Binary Search, Greedy, Queue, Sorting, Monotonic Queue	2025-05-01	Go Python
0459	Repeated Substring Pattern	Easy	String, String Matching	2025-04-30	Go Python
0434	Number of Segments in a String	Easy	String	2025-04-29	Go Python
3405	Count the Number of Arrays with K Matching Adjacent Elements	Hard	Math, Combinatorics	2025-04-28	Go Python
3392	Count Subarrays of Length Three With a Condition	Easy	Array	2025-04-27	Go Python
3113	Find the Number of Subarrays Where Boundary Elements Are Maximum	Hard	Array, Binary Search, Stack, Monotonic Stack	2025-04-26	Go Python
2845	Count of Interesting Subarrays	Medium	Array, Hash Table, Prefix Sum	2025-04-25	Go Python
2799	Count Complete Subarrays in an Array	Medium	Array, Hash Table, Sliding Window	2025-04-24	Go Python
1399	Count Largest Group	Easy	Hash Table, Math	2025-04-23	Go Python
2338	Count the Number of Ideal Arrays	Hard	Math, Dynamic Programming, Combinatorics, Number Theory	2025-04-22	Go Python
2145	Count the Hidden Sequences	Medium	Array, Prefix Sum	2025-04-21	Go Python
0781	Rabbits in Forest	Medium	Array, Hash Table, Math, Greedy	2025-04-20	Go Python
2563	Count the Number of Fair Pairs	Medium	Array, Two Pointers, Binary Search, Sorting	2025-04-19	Go Python
0038	Count and Say	Medium	String	2025-04-18	Go Python
2176	Count Equal and Divisible Pairs in an Array	Easy	Array	2025-04-17	Go Python
2537	Count the Number of Good Subarrays	Medium	Array, Hash Table, Sliding Window	2025-04-16	Go Python
2179	Count Good Triplets in an Array	Hard	Array, Binary Search, Divide and Conquer, Binary Indexed Tree, Segment Tree, Merge Sort, Ordered Set	2025-04-15	Go Python
1534	Count Good Triplets	Easy	Array, Enumeration	2025-04-14	Go Python
1922	Count Good Numbers	Medium	Math, Recursion	2025-04-13	Go Python
3272	Find the Count of Good Integers	Hard	Hash Table, Math, Combinatorics, Enumeration	2025-04-12	Go Python
2843	Count Symmetric Integers	Easy	Math, Enumeration	2025-04-11	Go Python
2999	Count the Number of Powerful Integers	Hard	Math, String, Dynamic Programming	2025-04-10	Go Python
3375	Minimum Operations to Make Array Values Equal to K	Easy	Array, Hash Table	2025-04-09	Go Python
3396	Minimum Number of Operations to Make Elements in Array Distinct	Easy	Array, Hash Table	2025-04-08	Go Python
0416	Partition Equal Subset Sum	Medium	Array, Dynamic Programming	2025-04-07	Go Python
0368	Largest Divisible Subset	Medium	Array, Math, Dynamic Programming, Sorting	2025-04-06	Go Python
0383	Ransom Note	Easy	Hash Table, String, Counting	2025-04-05	Go Python
1123	Lowest Common Ancestor of Deepest Leaves	Medium	Hash Table, Tree, Depth-First Search, Breadth-First Search, Binary Tree	2025-04-04	Go Python
2874	Maximum Value of an Ordered Triplet II	Medium	Array	2025-04-03	Go Python
2873	Maximum Value of an Ordered Triplet I	Easy	Array	2025-04-02	Go Python
2140	Solving Questions With Brainpower	Medium	Array, Dynamic Programming	2025-04-01	Go Python
0290	Word Pattern	Easy	Hash Table, String	2025-03-31	Go Python
0763	Partition Labels	Medium	Hash Table, Two Pointers, String, Greedy	2025-03-30	Go Python
2818	Apply Operations to Maximize Score	Hard	Array, Math, Stack, Greedy, Sorting, Monotonic Stack, Number Theory	2025-03-29	Go Python
2503	Maximum Number of Points From Grid Queries	Hard	Array, Two Pointers, Breadth-First Search, Union Find, Sorting, Heap (Priority Queue), Matrix	2025-03-28	Go Python
2780	Minimum Index of a Valid Split	Medium	Array, Hash Table, Sorting	2025-03-27	Go Python
2033	Minimum Operations to Make a Uni-Value Grid	Medium	Array, Math, Sorting, Matrix	2025-03-26	Go Python
3394	Check if Grid can be Cut into Sections	Medium	Array, Sorting	2025-03-25	Go Python
3169	Count Days Without Meetings	Medium	Array, Sorting	2025-03-24	Go Python
1976	Number of Ways to Arrive at Destination	Medium	Dynamic Programming, Graph, Topological Sort, Shortest Path	2025-03-23	Go Python
2685	Count the Number of Complete Components	Medium	Depth-First Search, Breadth-First Search, Union Find, Graph	2025-03-22	Go Python
2115	Find All Possible Recipes from Given Supplies	Medium	Array, Hash Table, String, Graph, Topological Sort	2025-03-21	Go Python
3108	Minimum Cost Walk in Weighted Graph	Hard	Array, Bit Manipulation, Union Find, Graph	2025-03-20	Go Python
3191	Minimum Operations to Make Binary Array Elements Equal to One I	Medium	Array, Bit Manipulation, Queue, Sliding Window, Prefix Sum	2025-03-19	Go Python
2401	Longest Nice Subarray	Medium	Array, Bit Manipulation, Sliding Window	2025-03-18	Go Python
2206	Divide Array Into Equal Pairs	Easy	Array, Hash Table, Bit Manipulation, Counting	2025-03-17	Go Python
2594	Minimum Time to Repair Cars	Medium	Array, Binary Search	2025-03-16	Go Python
2560	House Robber IV	Medium	Array, Binary Search	2025-03-15	Go Python
2226	Maximum Candies Allocated to K Children	Medium	Array, Binary Search	2025-03-14	Go Python
3356	Zero Array Transformation II	Medium	Array, Binary Search, Prefix Sum	2025-03-13	Go Python
2529	Maximum Count of Positive Integer and Negative Integer	Easy	Array, Binary Search, Counting	2025-03-12	Go Python
1358	Number of Substrings Containing All Three Characters	Medium	Hash Table, String, Sliding Window	2025-03-11	Go Python
3306	Count of Substrings Containing Every Vowel and K Consonants II	Medium	Hash Table, String, Sliding Window	2025-03-10	Go Python
3208	Alternating Groups II	Medium	Array, Sliding Window	2025-03-09	Go Python
2379	Minimum Recolors to Get K Consecutive Black Blocks	Easy	String, Sliding Window	2025-03-08	Go Python
2523	Closest Prime Numbers in Range	Medium	Math, Number Theory	2025-03-07	Go Python
2965	Find Missing and Repeated Values	Easy	Array, Hash Table, Math, Matrix	2025-03-06	Go Python
2579	Count Total Number of Colored Cells	Medium	Math	2025-03-05	Go Python
1780	Check if Number is a Sum of Powers of Three	Medium	Math	2025-03-04	Go Python
2161	Partition Array According to Given Pivot	Medium	Array, Two Pointers, Simulation	2025-03-03	Go Python
2570	Merge Two 2D Arrays by Summing Values	Easy	Array, Hash Table, Two Pointers	2025-03-02	Go Python
2460	Apply Operations to an Array	Easy	Array, Two Pointers, Simulation	2025-03-01	Go Python
1092	Shortest Common Supersequence	Hard	String, Dynamic Programming	2025-02-28	Go Python
0873	Length of Longest Fibonacci Subsequence	Medium	Array, Hash Table, Dynamic Programming	2025-02-27	Go Python
1749	Maximum Absolute Sum of Any Subarray	Medium	Array, Dynamic Programming	2025-02-26	Go Python
1524	Number of Sub-arrays With Odd Sum	Medium	Array, Math, Dynamic Programming, Prefix Sum	2025-02-25	Go Python
2467	Most Profitable Path in a Tree	Medium	Array, Tree, Depth-First Search, Breadth-First Search, Graph	2025-02-24	Go Python
0889	Construct Binary Tree from Preorder and Postorder Traversal	Medium	Array, Hash Table, Divide and Conquer, Tree, Binary Tree	2025-02-23	Go Python
0832	Flipping an Image	Easy	Array, Two Pointers, Bit Manipulation, Matrix, Simulation	2025-02-22	Go Python
1261	Find Elements in a Contaminated Binary Tree	Medium	Hash Table, Tree, Depth-First Search, Breadth-First Search, Design, Binary Tree	2025-02-21	Go Python
1980	Find Unique Binary String	Medium	Array, Hash Table, String, Backtracking	2025-02-20	Go Python
1415	The k-th Lexicographical String of All Happy Strings of Length n	Medium	String, Backtracking	2025-02-19	Go Python
2375	Construct Smallest Number From DI String	Medium	String, Backtracking, Stack, Greedy	2025-02-18	Go Python
1079	Letter Tile Possibilities	Medium	Hash Table, String, Backtracking, Counting	2025-02-17	Go Python
1718	Construct the Lexicographically Largest Valid Sequence	Medium	Array, Backtracking	2025-02-16	Go Python
2698	Find the Punishment Number of an Integer	Medium	Math, Backtracking	2025-02-15	Go Python
1352	Product of the Last K Numbers	Medium	Array, Math, Design, Data Stream, Prefix Sum	2025-02-14	Go Python
3066	Minimum Operations to Exceed Threshold Value II	Medium	Array, Heap (Priority Queue), Simulation	2025-02-13	Go Python
2342	Max Sum of a Pair With Equal Sum of Digits	Medium	Array, Hash Table, Sorting, Heap (Priority Queue)	2025-02-12	Go Python
1910	Remove All Occurrences of a Substring	Medium	String, Stack, Simulation	2025-02-11	Go Python
3174	Clear Digits	Easy	String, Stack, Simulation	2025-02-10	Go Python
2364	Count Number of Bad Pairs	Medium	Array, Hash Table, Math, Counting	2025-02-09	Go Python
2349	Design a Number Container System	Medium	Hash Table, Design, Heap (Priority Queue), Ordered Set	2025-02-08	Go Python
3160	Find the Number of Distinct Colors Among the Balls	Medium	Array, Hash Table, Simulation	2025-02-07	Go Python
1726	Tuple with Same Product	Medium	Array, Hash Table, Counting	2025-02-06	Go Python
1790	Check if One String Swap Can Make Strings Equal	Easy	Hash Table, String, Counting	2025-02-05	Go Python
1800	Maximum Ascending Subarray Sum	Easy	Array	2025-02-04	Go Python
3105	Longest Strictly Increasing or Strictly Decreasing Subarray	Easy	Array	2025-02-03	Go Python
1752	Check if Array Is Sorted and Rotated	Easy	Array	2025-02-02	Go Python
3151	Special Array I	Easy	Array	2025-02-01	Go Python
0827	Making A Large Island	Hard	Array, Depth-First Search, Breadth-First Search, Union Find, Matrix	2025-01-31	Go Python
0785	Is Graph Bipartite?	Medium	Depth-First Search, Breadth-First Search, Union Find, Graph	2025-01-31	Go Python
2493	Divide Nodes Into the Maximum Number of Groups	Hard	Breadth-First Search, Union Find, Graph	2025-01-30	Go Python
0684	Redundant Connection	Medium	Depth-First Search, Breadth-First Search, Union Find, Graph	2025-01-29	Go Python
2658	Maximum Number of Fish in a Grid	Medium	Array, Depth-First Search, Breadth-First Search, Union Find, Matrix	2025-01-28	Go Python
1462	Course Schedule IV	Medium	Depth-First Search, Breadth-First Search, Graph, Topological Sort	2025-01-27	Go Python
2127	Maximum Employees to Be Invited to a Meeting	Hard	Depth-First Search, Graph, Topological Sort	2025-01-26	Go Python
2948	Make Lexicographically Smallest Array by Swapping Elements	Medium	Array, Union Find, Sorting	2025-01-25	Go Python
0802	Find Eventual Safe States	Medium	Depth-First Search, Breadth-First Search, Graph, Topological Sort	2025-01-24	Go Python
1267	Count Servers that Communicate	Medium	Array, Depth-First Search, Breadth-First Search, Union Find, Matrix, Counting	2025-01-23	Go Python
1765	Map of Highest Peak	Medium	Array, Breadth-First Search, Matrix	2025-01-22	Go Python
2017	Grid Game	Medium	Array, Matrix, Prefix Sum	2025-01-21	Go Python
2661	First Completely Painted Row or Column	Medium	Array, Hash Table, Matrix	2025-01-20	Go Python
0407	Trapping Rain Water II	Hard	Array, Breadth-First Search, Heap (Priority Queue), Matrix	2025-01-19	Go Python
1368	Minimum Cost to Make at Least One Valid Path in a Grid	Hard	Array, Breadth-First Search, Graph, Heap (Priority Queue), Matrix, Shortest Path	2025-01-18	Go Python
2683	Neighboring Bitwise XOR	Medium	Array, Bit Manipulation	2025-01-17	Go Python
2425	Bitwise XOR of All Pairings	Medium	Array, Bit Manipulation, Brainteaser	2025-01-16	Go Python
2429	Minimize XOR	Medium	Greedy, Bit Manipulation	2025-01-15	Go Python
2657	Find the Prefix Common Array of Two Arrays	Medium	Array, Hash Table, Bit Manipulation	2025-01-14	Go Python
3223	Minimum Length of String After Operations	Medium	Hash Table, String, Counting	2025-01-13	Go Python
2116	Check if a Parentheses String Can Be Valid	Medium	String, Stack, Greedy	2025-01-12	Go Python
1400	Construct K Palindrome Strings	Medium	Hash Table, String, Greedy, Counting	2025-01-11	Go Python
0916	Word Subsets	Medium	Array, Hash Table, String	2025-01-10	Go Python
2185	Counting Words With a Given Prefix	Easy	Array, String, String Matching	2025-01-09	Go Python
3045	Count Prefix and Suffix Pairs II	Hard	Array, String, Trie, Rolling Hash, String Matching, Hash Function	2025-01-08	Go Python
3042	Count Prefix and Suffix Pairs I	Easy	Array, String, Trie, Rolling Hash, String Matching, Hash Function	2025-01-08	Go Python
1408	String Matching in an Array	Easy	Array, String, String Matching	2025-01-07	Go Python
1769	Minimum Number of Operations to Move All Balls to Each Box	Medium	Array, String, Prefix Sum	2025-01-06	Go Python
2381	Shifting Letters II	Medium	Array, String, Prefix Sum	2025-01-05	Go Python
1930	Unique Length-3 Palindromic Subsequences	Medium	Hash Table, String, Bit Manipulation, Prefix Sum	2025-01-04	Go Python
2270	Number of Ways to Split Array	Medium	Array, Prefix Sum	2025-01-03	Go Python
2559	Count Vowel Strings in Ranges	Medium	Array, String, Prefix Sum	2025-01-02	Go Python
1422	Maximum Score After Splitting a String	Easy	String, Prefix Sum	2025-01-01	Go Python
0983	Minimum Cost For Tickets	Medium	Array, Dynamic Programming	2024-12-31	Go Python
0067	Add Binary	Easy	Math, String, Bit Manipulation, Simulation	2024-12-31	Go Python
2009	Minimum Number of Operations to Make Array Continuous	Hard	Array, Hash Table, Binary Search, Sliding Window	2024-12-31	Go Python
0560	Subarray Sum Equals K	Medium	Array, Hash Table, Prefix Sum	2024-12-30	Go Python
2466	Count Ways To Build Good Strings	Medium	Dynamic Programming	2024-12-30	Go Python
0941	Valid Mountain Array	Easy	Array	2024-12-29	Go Python
0953	Verifying an Alien Dictionary	Easy	Array, Hash Table, String	2024-12-29	Go Python
0689	Maximum Sum of 3 Non-Overlapping Subarrays	Hard	Array, Dynamic Programming	2024-12-28	Go Python
1014	Best Sightseeing Pair	Medium	Array, Dynamic Programming	2024-12-27	Go Python
0494	Target Sum	Medium	Array, Dynamic Programming, Backtracking	2024-12-26	Go Python
0617	Merge Two Binary Trees	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-12-26	Go Python
0515	Find Largest Value in Each Tree Row	Medium	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-12-25	Go Python
3203	Find Minimum Diameter After Merging Two Trees	Hard	Tree, Depth-First Search, Breadth-First Search, Graph	2024-12-24	Go Python
0108	Convert Sorted Array to Binary Search Tree	Easy	Array, Divide and Conquer, Tree, Binary Search Tree, Binary Tree	2024-12-24	Go Python
0257	Binary Tree Paths	Easy	String, Backtracking, Tree, Depth-First Search, Binary Tree	2024-12-23	Go Python
2940	Find Building Where Alice and Bob Can Meet	Hard	Array, Binary Search, Stack, Binary Indexed Tree, Segment Tree, Heap (Priority Queue), Monotonic Stack	2024-12-23	Go Python
0461	Hamming Distance	Easy	Bit Manipulation	2024-12-22	Go Python
0231	Power of Two	Easy	Math, Bit Manipulation, Recursion	2024-12-21	Go Python
2872	Maximum Number of K-Divisible Components	Hard	Tree, Depth-First Search	2024-12-21	Go Python
1074	Number of Submatrices That Sum to Target	Hard	Array, Hash Table, Matrix, Prefix Sum	2024-12-20	Go Python
0111	Minimum Depth of Binary Tree	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-12-20	Go Python
0605	Can Place Flowers	Easy	Array, Greedy	2024-12-19	Go Python
1591	Strange Printer II	Hard	Array, Graph, Topological Sort, Matrix	2024-12-19	Go Python
1475	Final Prices With a Special Discount in a Shop	Easy	Array, Stack, Monotonic Stack	2024-12-18	Go Python
2448	Minimum Cost to Make Array Equal	Hard	Array, Binary Search, Greedy, Sorting, Prefix Sum	2024-12-17	Go Python
0242	Valid Anagram	Easy	Hash Table, String, Sorting	2024-12-17	Go Python
0895	Maximum Frequency Stack	Hard	Hash Table, Stack, Design, Ordered Set	2024-12-16	Go Python
3264	Final Array State After K Multiplication Operations I	Easy	Array, Math, Heap (Priority Queue), Simulation	2024-12-16	Go Python
1782	Count Pairs Of Nodes	Hard	Array, Two Pointers, Binary Search, Graph, Sorting	2024-12-15	Go Python
0342	Power of Four	Easy	Math, Bit Manipulation, Recursion	2024-12-15	Go Python
1095	Find in Mountain Array	Hard	Binary Search, Recursion, Two Pointers, Dynamic Programming, Greedy, Memoization, Backtracking	2024-12-14	Go Python
0035	Search Insert Position	Easy	Binary Search	2024-12-14	Go Python
0374	Guess Number Higher or Lower	Easy	Binary Search	2024-12-13	Go Python
0460	LFU Cache	Hard	Hash Table, Linked List, Design, Doubly-Linked List	2024-12-13	Go Python
2558	Take Gifts From the Richest Pile	Easy	Array, Heap (Priority Queue), Simulation	2024-12-12	Go Python
1675	Minimize Deviation in Array	Hard	Array, Greedy, Heap (Priority Queue), Ordered Set	2024-12-11	Go Python
0278	First Bad Version	Easy	Binary Search, Interactive	2024-12-11	Go Python
2251	Number of Flowers in Full Bloom	Hard	Array, Hash Table, Binary Search, Sorting, Prefix Sum, Ordered Set	2024-12-10	Go Python
0541	Reverse String II	Easy	Two Pointers, String	2024-12-10	Go Python
1857	Largest Color Value in a Directed Graph	Hard	Hash Table, Dynamic Programming, Graph, Topological Sort, Memoization, Counting	2024-12-09	Go Python
0557	Reverse Words in a String III	Easy	Two Pointers, String	2024-12-09	Go Python
1553	Minimum Number of Days to Eat N Oranges	Hard	Dynamic Programming, Memoization	2024-12-08	Go Python
1047	Remove All Adjacent Duplicates In String	Easy	String, Stack	2024-12-08	Go Python
2421	Number of Good Paths	Hard	Array, Hash Table, Tree, Union Find, Graph, Sorting	2024-12-07	Go Python
0389	Find the Difference	Easy	Hash Table, String, Bit Manipulation, Sorting	2024-12-07	Go Python
1489	Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree	Hard	Union Find, Graph, Sorting, Minimum Spanning Tree, Strongly Connected Component	2024-12-06	Go Python
1295	Find Numbers with Even Number of Digits	Easy	Array, Math	2024-12-06	Go Python
0472	Concatenated Words	Hard	Array, String, Dynamic Programming, Depth-First Search, Trie	2024-12-05	Go Python
0069	Sqrt(x)	Easy	Math, Binary Search	2024-12-05	Go Python
0118	Pascal's Triangle	Easy	Array, Dynamic Programming	2024-12-04	Go Python
1799	Maximize Score After N Operations	Hard	Array, Math, Dynamic Programming, Backtracking, Bit Manipulation, Number Theory, Bitmask	2024-12-04	Go Python
1964	Find the Longest Valid Obstacle Course at Each Position	Hard	Array, Binary Search, Binary Indexed Tree	2024-12-03	Go Python
1455	Check If a Word Occurs As a Prefix of Any Word in a Sentence	Easy	Two Pointers, String, String Matching	2024-12-02	Go Python
3244	Shortest Distance After Road Addition Queries II	Hard	Array, Greedy, Graph, Ordered Set	2024-12-01	Go Python
2097	Valid Arrangement of Pairs	Hard	Depth-First Search, Graph, Eulerian Circuit	2024-11-30	Go Python
2577	Minimum Time to Visit a Cell In a Grid	Hard	Array, Breadth-First Search, Graph, Heap (Priority Queue), Matrix, Shortest Path	2024-11-29	Go Python
2290	Minimum Obstacle Removal to Reach Corner	Hard	Array, Breadth-First Search, Graph, Heap (Priority Queue), Matrix, Shortest Path	2024-11-28	Go Python
1346	Check If N and Its Double Exist	Easy	Array, Hash Table, Two Pointers, Binary Search, Sorting	2024-11-27	Go Python
0066	Plus One	Easy	Array, Math	2024-11-26	Go Python
0773	Sliding Puzzle	Hard	Array, Breadth-First Search, Matrix	2024-11-25	Go Python
0101	Symmetric Tree	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-11-24	Go Python
1235	Maximum Profit in Job Scheduling	Hard	Array, Binary Search, Dynamic Programming, Sorting	2024-11-23	Go Python
1751	Maximum Number of Events That Can Be Attended II	Hard	Array, Binary Search, Dynamic Programming, Sorting	2024-11-22	Go Python
0940	Distinct Subsequences II	Hard	String, Dynamic Programming	2024-11-21	Go Python
2218	Maximum Value of K Coins From Piles	Hard	Array, Dynamic Programming, Prefix Sum	2024-11-20	Go Python
0920	Number of Music Playlists	Hard	Math, Dynamic Programming, Combinatorics	2024-11-19	Go Python
1652	Defuse the Bomb	Easy	Array, Sliding Window	2024-11-18	Go Python
0258	Add Digits	Easy	Math, Simulation, Number Theory	2024-11-17	Go Python
0283	Move Zeroes	Easy	Array, Two Pointers	2024-11-16	Go Python
1639	Number of Ways to Form a Target String Given a Dictionary	Hard	Array, String, Dynamic Programming	2024-11-15	Go Python
1547	Minimum Cost to Cut a Stick	Hard	Array, Dynamic Programming, Sorting	2024-11-14	Go Python
2742	Painting the Walls	Hard	Array, Dynamic Programming	2024-11-13	Go Python
1494	Parallel Courses II	Hard	Dynamic Programming, Bit Manipulation, Graph, Bitmask	2024-11-12	Go Python
0862	Shortest Subarray with Sum at Least K	Hard	Array, Binary Search, Queue, Sliding Window, Heap (Priority Queue), Prefix Sum, Monotonic Queue	2024-11-11	Go Python
0643	Maximum Average Subarray I	Easy	Array, Sliding Window	2024-11-10	Go Python
0929	Unique Email Addresses	Easy	Array, Hash Table, String	2024-11-09	Go Python
2050	Parallel Courses III	Hard	Array, Dynamic Programming, Graph, Topological Sort	2024-11-08	Go Python
1269	Number of Ways to Stay in the Same Place After Some Steps	Hard	Dynamic Programming	2024-11-07	Go Python
1531	String Compression II	Hard	String, Dynamic Programming	2024-11-06	Go Python
0203	Remove Linked List Elements	Easy	Linked List, Recursion	2024-11-05	Go Python
1872	Stone Game VIII	Hard	Array, Math, Dynamic Programming, Prefix Sum, Game Theory	2024-11-04	Go Python
0796	Rotate String	Easy	String, String Matching	2024-11-03	Go Python
2490	Circular Sentence	Easy	String	2024-11-02	Go Python
1957	Delete Characters to Make Fancy String	Easy	String	2024-11-01	Go Python
2463	Minimum Total Distance Traveled	Hard	Array, Dynamic Programming, Sorting	2024-10-31	Go Python
1671	Minimum Number of Removals to Make Mountain Array	Hard	Array, Binary Search, Dynamic Programming, Greedy	2024-10-30	Go Python
1563	Stone Game V	Hard	Array, Math, Dynamic Programming, Game Theory	2024-10-29	Go Python
1510	Stone Game IV	Hard	Math, Dynamic Programming, Game Theory	2024-10-28	Go Python
1406	Stone Game III	Hard	Array, Math, Dynamic Programming, Game Theory	2024-10-27	Go Python
2458	Height of Binary Tree After Subtree Removal Queries	Hard	Array, Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-10-26	Go Python
1359	Count All Valid Pickup and Delivery Options	Hard	Math, Dynamic Programming, Combinatorics	2024-10-25	Go Python
0446	Arithmetic Slices II - Subsequence	Hard	Array, Dynamic Programming	2024-10-24	Go Python
1335	Minimum Difficulty of a Job Schedule	Hard	Array, Dynamic Programming	2024-10-23	Go Python
0629	K Inverse Pairs Array	Hard	Dynamic Programming	2024-10-22	Go Python
3235	Check if the Rectangle Corner Is Reachable	Hard	Array, Math, Depth-First Search, Breadth-First Search, Union Find, Geometry	2024-10-21	Go Python
1106	Parsing A Boolean Expression	Hard	String, Stack, Recursion	2024-10-20	Go Python
2147	Number of Ways to Divide a Long Corridor	Hard	Math, String, Dynamic Programming	2024-10-19	Go Python
0174	Dungeon Game	Hard	Array, Dynamic Programming, Matrix	2024-10-18	Go Python
0412	Fizz Buzz	Easy	Math, String, Simulation	2024-10-17	Go Python
1463	Cherry Pickup II	Hard	Array, Dynamic Programming, Matrix	2024-10-16	Go Python
0741	Cherry Pickup	Hard	Array, Dynamic Programming, Matrix	2024-10-15	Go Python
1793	Maximum Score of a Good Subarray	Hard	Array, Two Pointers, Binary Search, Stack, Monotonic Stack	2024-10-14	Go Python
0632	Smallest Range Covering Elements from K Lists	Hard	Array, Hash Table, Greedy, Sliding Window, Sorting, Heap (Priority Queue)	2024-10-13	Go Python
0352	Data Stream as Disjoint Intervals	Hard	Binary Search, Design, Ordered Set	2024-10-12	Go Python
2306	Naming a Company	Hard	Array, Hash Table, String, Bit Manipulation, Enumeration	2024-10-11	Go Python
2402	Meeting Rooms III	Hard	Array, Hash Table, Sorting, Heap (Priority Queue), Simulation	2024-10-10	Go Python
1611	Minimum One Bit Operations to Make Integers Zero	Hard	Dynamic Programming, Bit Manipulation, Memoization	2024-10-09	Go Python
0805	Split Array With Same Average	Hard	Array, Math, Dynamic Programming, Bit Manipulation, Bitmask	2024-10-08	Go Python
2696	Minimum String Length After Removing Substrings	Easy	String, Stack, Simulation	2024-10-07	Go Python
0115	Distinct Subsequences	Hard	String, Dynamic Programming	2024-10-06	Go Python
0068	Text Justification	Hard	Array, String, Simulation	2024-10-05	Go Python
0410	Split Array Largest Sum	Hard	Array, Binary Search, Dynamic Programming, Greedy, Prefix Sum	2024-10-04	Go Python
2183	Count Array Pairs Divisible by K	Hard	Array, Math, Number Theory	2024-10-03	Go Python
1331	Rank Transform of an Array	Easy	Array, Hash Table, Sorting	2024-10-02	Go Python
0312	Burst Balloons	Hard	Array, Dynamic Programming	2024-10-01	Go Python
1851	Minimum Interval to Include Each Query	Hard	Array, Binary Search, Line Sweep, Sorting, Heap (Priority Queue)	2024-09-30	Go Python
0879	Profitable Schemes	Hard	Array, Dynamic Programming	2024-09-29	Go Python
1220	Count Vowels Permutation	Hard	Dynamic Programming	2024-09-28	Go Python
0732	My Calendar III	Hard	Binary Search, Design, Segment Tree, Prefix Sum, Ordered Set	2024-09-27	Go Python
0691	Stickers to Spell Word	Hard	Array, String, Dynamic Programming, Backtracking, Bit Manipulation, Bitmask	2024-09-26	Go Python
2416	Sum of Prefix Scores of Strings	Hard	Array, String, Trie, Counting	2024-09-25	Go Python
3093	Longest Common Suffix Queries	Hard	Array, String, Trie	2024-09-24	Go Python
1643	Kth Smallest Instructions	Hard	Array, Math, Dynamic Programming, Combinatorics	2024-09-23	Go Python
0440	K-th Smallest in Lexicographical Order	Hard	Trie	2024-09-22	Go Python
0028	Find the Index of the First Occurrence in a String	Easy	Two Pointers, String, String Matching	2024-09-21	Go Python
0214	Shortest Palindrome	Hard	String, Rolling Hash, String Matching, Hash Function	2024-09-20	Go Python
1866	Number of Ways to Rearrange Sticks With K Sticks Visible	Hard	Math, Dynamic Programming, Combinatorics	2024-09-19	Go Python
2328	Number of Increasing Paths in a Grid	Hard	Array, Dynamic Programming, Depth-First Search, Breadth-First Search, Graph, Topological Sort, Memoization, Matrix	2024-09-18	Go Python
0884	Uncommon Words from Two Sentences	Easy	Hash Table, String, Counting	2024-09-17	Go Python
0329	Longest Increasing Path in a Matrix	Hard	Array, Dynamic Programming, Depth-First Search, Breadth-First Search, Graph, Topological Sort, Memoization, Matrix	2024-09-16	Go Python
0126	Word Ladder II	Hard	Hash Table, String, Backtracking, Breadth-First Search	2024-09-15	Go Python
0127	Word Ladder	Hard	Hash Table, String, Breadth-First Search	2024-09-14	Go Python
0297	Serialize and Deserialize Binary Tree	Hard	String, Tree, Depth-First Search, Breadth-First Search, Design, Binary Tree	2024-09-13	Go Python
1684	Count the Number of Consistent Strings	Easy	Array, Hash Table, String, Bit Manipulation, Counting	2024-09-12	Go Python
2220	Minimum Bit Flips to Convert Number	Easy	Bit Manipulation	2024-09-11	Go Python
0124	Binary Tree Maximum Path Sum	Hard	Dynamic Programming, Tree, Depth-First Search, Binary Tree	2024-09-10	Go Python
0480	Sliding Window Median	Hard	Array, Hash Table, Sliding Window, Heap (Priority Queue)	2024-09-09	Go Python
0572	Subtree of Another Tree	Easy	Tree, Depth-First Search, String Matching, Binary Tree, Hash Function	2024-09-08	Go Python
1425	Constrained Subsequence Sum	Hard	Array, Dynamic Programming, Queue, Sliding Window, Heap (Priority Queue), Monotonic Queue	2024-09-07	Go Python
1340	Jump Game V	Hard	Array, Dynamic Programming, Sorting	2024-09-06	Go Python
1345	Jump Game IV	Hard	Array, Hash Table, Breadth-First Search	2024-09-05	Go Python
2106	Maximum Fruits Harvested After at Most K Steps	Hard	Array, Binary Search, Sliding Window, Prefix Sum	2024-09-04	Go Python
1945	Sum of Digits of String After Convert	Easy	String, Simulation	2024-09-03	Go Python
1383	Maximum Performance of a Team	Hard	Array, Greedy, Sorting, Heap (Priority Queue)	2024-09-02	Go Python
2022	Convert 1D Array Into 2D Array	Easy	Array, Matrix, Simulation	2024-09-01	Go Python
0149	Max Points on a Line	Hard	Array, Hash Table, Math, Geometry	2024-08-31	Go Python
2699	Modify Graph Edge Weights	Hard	Graph, Heap (Priority Queue), Shortest Path	2024-08-30	Go Python
0014	Longest Common Prefix	Easy	String, Trie	2024-08-29	Go Python
0052	N-Queens II	Hard	Backtracking	2024-08-28	Go Python
0030	Substring with Concatenation of All Words	Hard	Hash Table, String, Sliding Window	2024-08-27	Go Python
0590	N-ary Tree Postorder Traversal	Easy	Stack, Tree, Depth-First Search	2024-08-26	Go Python
0145	Binary Tree Postorder Traversal	Easy	Stack, Tree, Depth-First Search, Binary Tree	2024-08-25	Go Python
0564	Find the Closest Palindrome	Hard	Math, String	2024-08-24	Go Python
0060	Permutation Sequence	Hard	Math, Recursion	2024-08-23	Go Python
0476	Number Complement	Easy	Bit Manipulation	2024-08-22	Go Python
0664	Strange Printer	Hard	String, Dynamic Programming	2024-08-21	Go Python
0051	N-Queens	Hard	Array, Backtracking	2024-08-20	Go Python
0013	Roman to Integer	Easy	Hash Table, Math, String	2024-08-19	Go Python
0136	Single Number	Easy	Array, Bit Manipulation	2024-08-18	Go Python
0367	Valid Perfect Square	Easy	Math, Binary Search	2024-08-17	Go Python
0745	Prefix and Suffix Search	Hard	Array, Hash Table, String, Design, Trie	2024-08-16	Go Python
0860	Lemonade Change	Easy	Array, Greedy	2024-08-15	Go Python
0719	Find K-th Smallest Pair Distance	Hard	Array, Two Pointers, Binary Search, Sorting	2024-08-14	Go Python
0733	Flood Fill	Easy	Array, Depth-First Search, Breadth-First Search, Matrix	2024-08-13	Go Python
0778	Swim in Rising Water	Hard	Array, Binary Search, Depth-First Search, Breadth-First Search, Union Find, Heap (Priority Queue), Matrix	2024-08-12	Go Python
1568	Minimum Number of Days to Disconnect Island	Hard	Array, Depth-First Search, Breadth-First Search, Matrix, Strongly Connected Component	2024-08-11	Go
0009	Palindrome Number	Easy	Math	2024-08-10	Go Python
2129	Capitalize the Title	Easy	String	2024-08-09	Go
0724	Find Pivot Index	Easy	Array, Prefix Sum	2024-08-08	Go Python
0303	Range Sum Query - Immutable	Easy	Array, Design, Prefix Sum	2024-08-07	Go Python
0084	Largest Rectangle in Histogram	Hard	Array, Stack, Monotonic Stack	2024-08-06	Go
2053	Kth Distinct String in an Array	Easy	Array, Hash Table, String, Counting	2024-08-05	Go
1827	Minimum Operations to Make the Array Increasing	Easy	Array, Greedy	2024-08-04	Go
1460	Make Two Arrays Equal by Reversing Subarrays	Easy	Array, Hash Table, Sorting	2024-08-03	Go
0315	Count of Smaller Numbers After Self	Hard	Array, Binary Search, Divide and Conquer, Binary Indexed Tree, Segment Tree, Merge Sort, Ordered Set	2024-08-02	Go Python
3232	Find if Digit Game Can Be Won	Easy	Array, Math	2024-08-01	Go
2678	Number of Senior Citizens	Easy	Array, String	2024-08-01	Go
1105	Filling Bookcase Shelves	Medium	Array, Dynamic Programming	2024-07-31	Go
1653	Minimum Deletions to Make String Balanced	Medium	String, Dynamic Programming, Stack	2024-07-30	Go
1395	Count Number of Teams	Medium	Array, Dynamic Programming, Binary Indexed Tree	2024-07-29	Go
2045	Second Minimum Time to Reach Destination	Hard	Breadth-First Search, Graph, Shortest Path	2024-07-28	Go
2976	Minimum Cost to Convert String I	Medium	Array, String, Graph, Shortest Path	2024-07-27	Go
1334	Find the City With the Smallest Number of Neighbors at a Threshold Distance	Medium	Dynamic Programming, Graph, Shortest Path	2024-07-26	Go
0123	Best Time to Buy and Sell Stock III	Hard	Array, Dynamic Programming	2024-07-25	Go
2191	Sort the Jumbled Numbers	Medium	Array, Sorting	2024-07-24	Go
1636	Sort Array by Increasing Frequency	Easy	Array, Hash Table, Sorting	2024-07-23	Go
2418	Sort the People	Easy	Array, Hash Table, String, Sorting	2024-07-22	Go
2392	Build a Matrix With Conditions	Hard	Array, Graph, Topological Sort, Matrix	2024-07-21	Go
1605	Find Valid Matrix Given Row and Column Sums	Medium	Array, Greedy, Matrix	2024-07-20	Go
1380	Lucky Numbers in a Matrix	Easy	Array, Matrix	2024-07-19	Go
1530	Number of Good Leaf Nodes Pairs	Medium	Tree, Depth-First Search, Binary Tree	2024-07-18	Go
1110	Delete Nodes And Return Forest	Medium	Array, Hash Table, Tree, Depth-First Search, Binary Tree	2024-07-17	Go
2096	Step-By-Step Directions From a Binary Tree Node to Another	Medium	String, Tree, Depth-First Search, Binary Tree	2024-07-16	Go
2196	Create Binary Tree From Descriptions	Medium	Array, Hash Table, Tree, Binary Tree	2024-07-15	Go
0726	Number of Atoms	Hard	Hash Table, String, Stack, Sorting	2024-07-14	Go
2751	Robot Collisions	Hard	Array, Stack, Sorting, Simulation	2024-07-13	Go
1717	Maximum Score From Removing Substrings	Medium	String, Stack, Greedy	2024-07-12	Go Python
1190	Reverse Substrings Between Each Pair of Parentheses	Medium	String, Stack	2024-07-11	Go
1598	Crawler Log Folder	Easy	Array, String, Stack	2024-07-10	Go
1701	Average Waiting Time	Medium	Array, Simulation	2024-07-09	Go
1823	Find the Winner of the Circular Game	Medium	Array, Math, Recursion, Queue, Simulation	2024-07-08	Go
1518	Water Bottles	Easy	Math, Simulation	2024-07-07	Go Python
2582	Pass the Pillow	Easy	Math, Simulation	2024-07-06	Go
2058	Find the Minimum and Maximum Number of Nodes Between Critical Points	Medium	Linked List	2024-07-05	Go
2181	Merge Nodes in Between Zeros	Medium	Linked List, Simulation	2024-07-04	Go
1509	Minimum Difference Between Largest and Smallest Value in Three Moves	Medium	Array, Greedy, Sorting	2024-07-03	Go
2215	Find the Difference of Two Arrays	Easy	Array, Hash Table	2024-07-02	Go
1550	Three Consecutive Odds	Easy	Array	2024-07-01	Go Python
1579	Remove Max Number of Edges to Keep Graph Fully Traversable	Hard	Union Find, Graph	2024-06-30	Go
2192	All Ancestors of a Node in a Directed Acyclic Graph	Medium	Depth-First Search, Breadth-First Search, Graph, Topological Sort	2024-06-29	Go
2285	Maximum Total Importance of Roads	Medium	Greedy, Graph, Sorting, Heap (Priority Queue)	2024-06-28	Go
1791	Find Center of Star Graph	Easy	Graph	2024-06-27	Go
1382	Balance a Binary Search Tree	Medium	Divide and Conquer, Greedy, Tree, Depth-First Search, Binary Search Tree, Binary Tree	2024-06-26	Go
1038	Binary Search Tree to Greater Sum Tree	Medium	Tree, Depth-First Search, Binary Search Tree, Binary Tree	2024-06-25	Go
0995	Minimum Number of K Consecutive Bit Flips	Hard	Array, Bit Manipulation, Queue, Sliding Window, Prefix Sum	2024-06-24	Go
1438	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	Medium	Array, Queue, Sliding Window, Heap (Priority Queue), Ordered Set, Monotonic Queue	2024-06-23	Go
1248	Count Number of Nice Subarrays	Medium	Array, Hash Table, Math, Sliding Window	2024-06-22	Go
1052	Grumpy Bookstore Owner	Medium	Array, Sliding Window	2024-06-21	Go
1552	Magnetic Force Between Two Balls	Medium	Array, Binary Search, Sorting	2024-06-20	Go
1482	Minimum Number of Days to Make m Bouquets	Medium	Array, Binary Search	2024-06-19	Go
0826	Most Profit Assigning Work	Medium	Array, Two Pointers, Binary Search, Greedy, Sorting	2024-06-18	Go
0633	Sum of Square Numbers	Medium	Math, Two Pointers, Binary Search	2024-06-17	Go
0330	Patching Array	Hard	Array, Greedy	2024-06-16	Go
0502	IPO	Hard	Array, Greedy, Sorting, Heap (Priority Queue)	2024-06-15	Go
0945	Minimum Increment to Make Array Unique	Medium	Array, Greedy, Sorting, Counting	2024-06-14	Go
2037	Minimum Number of Moves to Seat Everyone	Easy	Array, Greedy, Sorting	2024-06-13	Go
0148	Sort List	Medium	Linked List, Two Pointers, Divide and Conquer, Sorting, Merge Sort	2024-06-12	Go
1122	Relative Sort Array	Easy	Array, Hash Table, Sorting, Counting Sort	2024-06-11	Go
1051	Height Checker	Easy	Array, Sorting, Counting Sort	2024-06-10	Go
0974	Subarray Sums Divisible by K	Medium	Array, Hash Table, Prefix Sum	2024-06-09	Go Python
0523	Continuous Subarray Sum	Medium	Array, Hash Table, Math, Prefix Sum	2024-06-08	Go
0648	Replace Words	Medium	Array, Hash Table, String, Trie	2024-06-07	Go
0846	Hand of Straights	Medium	Array, Hash Table, Greedy, Sorting	2024-06-06	Go
0350	Intersection of Two Arrays II	Easy	Array, Hash Table, Two Pointers, Binary Search, Sorting	2024-06-05	Go
1002	Find Common Characters	Easy	Array, Hash Table, String	2024-06-05	Go
0409	Longest Palindrome	Easy	Hash Table, String, Greedy	2024-06-04	Go
0392	Is Subsequence	Easy	Two Pointers, String, Dynamic Programming	2024-06-03	Go
2486	Append Characters to String to Make Subsequence	Medium	Two Pointers, String, Greedy	2024-06-03	Go
0344	Reverse String	Easy	Two Pointers, String	2024-06-02	Go
3110	Score of a String	Easy	String	2024-06-01	Go
0260	Single Number III	Medium	Array, Bit Manipulation	2024-05-31	Go
1442	Count Triplets That Can Form Two Arrays of Equal XOR	Medium	Array, Hash Table, Math, Bit Manipulation, Prefix Sum	2024-05-30	Go
1404	Number of Steps to Reduce a Number in Binary Representation to One	Medium	String, Bit Manipulation	2024-05-29	Go
1208	Get Equal Substrings Within Budget	Medium	String, Binary Search, Sliding Window, Prefix Sum	2024-05-28	Go
1608	Special Array With X Elements Greater Than or Equal X	Easy	Array, Binary Search, Sorting	2024-05-27	Go
0552	Student Attendance Record II	Hard	Dynamic Programming	2024-05-26	Go
0551	Student Attendance Record I	Easy	String	2024-05-26	Go
0140	Word Break II	Hard	Array, Hash Table, String, Dynamic Programming, Backtracking, Trie, Memoization	2024-05-25	Go
0139	Word Break	Medium	Array, Hash Table, String, Dynamic Programming, Trie, Memoization	2024-05-25	Go
1255	Maximum Score Words Formed by Letters	Hard	Array, String, Dynamic Programming, Backtracking, Bit Manipulation, Bitmask	2024-05-24	Go
2597	The Number of Beautiful Subsets	Medium	Array, Dynamic Programming, Backtracking, Sorting	2024-05-23	Go
0131	Palindrome Partitioning	Medium	String, Dynamic Programming, Backtracking	2024-05-22	Go
1982	Find Array Given Subset Sums	Hard	Array, Divide and Conquer	2024-05-21	Go
1863	Sum of All Subset XOR Totals	Easy	Array, Math, Backtracking, Bit Manipulation, Combinatorics, Enumeration	2024-05-20	Go Python
3068	Find the Maximum Sum of Node Values	Hard	Array, Dynamic Programming, Greedy, Bit Manipulation, Tree, Sorting	2024-05-19	Go Python
0979	Distribute Coins in Binary Tree	Medium	Tree, Depth-First Search, Binary Tree	2024-05-18	Go
1325	Delete Leaves With a Given Value	Medium	Tree, Depth-First Search, Binary Tree	2024-05-17	Go
2331	Evaluate Boolean Binary Tree	Easy	Tree, Depth-First Search, Binary Tree	2024-05-16	Go
2812	Find the Safest Path in a Grid	Medium	Array, Binary Search, Breadth-First Search, Union Find, Matrix	2024-05-15	Go
1219	Path with Maximum Gold	Medium	Array, Backtracking, Matrix	2024-05-14	Go
0861	Score After Flipping Matrix	Medium	Array, Greedy, Bit Manipulation, Matrix	2024-05-13	Go
2373	Largest Local Values in a Matrix	Easy	Array, Matrix	2024-05-12	Go
0857	Minimum Cost to Hire K Workers	Hard	Array, Greedy, Sorting, Heap (Priority Queue)	2024-05-11	Go
0786	K-th Smallest Prime Fraction	Medium	Array, Two Pointers, Binary Search, Sorting, Heap (Priority Queue)	2024-05-10	Go
3075	Maximize Happiness of Selected Children	Medium	Array, Greedy, Sorting	2024-05-09	Go
0506	Relative Ranks	Easy	Array, Sorting, Heap (Priority Queue)	2024-05-08	Go
2816	Double a Number Represented as a Linked List	Medium	Linked List, Math, Stack	2024-05-07	Go
2487	Remove Nodes From Linked List	Medium	Linked List, Stack, Recursion, Monotonic Stack	2024-05-06	Go
0237	Delete Node in a Linked List	Medium	Linked List	2024-05-05	Go
0881	Boats to Save People	Medium	Array, Two Pointers, Greedy, Sorting	2024-05-04	Go
0165	Compare Version Numbers	Medium	Two Pointers, String	2024-05-03	Go Python
2441	Largest Positive Integer That Exists With Its Negative	Easy	Array, Hash Table, Two Pointers, Sorting	2024-05-02	Go
2000	Reverse Prefix of Word	Easy	Two Pointers, String	2024-05-01	Go
1915	Number of Wonderful Substrings	Medium	Hash Table, String, Bit Manipulation, Prefix Sum	2024-04-30	Go
2997	Minimum Number of Operations to Make Array XOR Equal to K	Medium	Array, Bit Manipulation	2024-04-29	Go
0834	Sum of Distances in Tree	Hard	Dynamic Programming, Tree, Depth-First Search, Graph	2024-04-28	Go
0514	Freedom Trail	Hard	String, Dynamic Programming, Depth-First Search, Breadth-First Search	2024-04-27	Go
1289	Minimum Falling Path Sum II	Hard	Array, Dynamic Programming, Matrix	2024-04-26	Go
2370	Longest Ideal Subsequence	Medium	Hash Table, String, Dynamic Programming	2024-04-25	Go
1137	N-th Tribonacci Number	Easy	Math, Dynamic Programming, Memoization	2024-04-24	Go
0310	Minimum Height Trees	Medium	Depth-First Search, Breadth-First Search, Graph, Topological Sort	2024-04-23	Go
0752	Open the Lock	Medium	Array, Hash Table, String, Breadth-First Search	2024-04-22	Go
1971	Find if Path Exists in Graph	Easy	Depth-First Search, Breadth-First Search, Union Find, Graph	2024-04-21	Go
1992	Find All Groups of Farmland	Medium	Array, Depth-First Search, Breadth-First Search, Matrix	2024-04-20	Go
0220	Contains Duplicate III	Hard	Array, Sliding Window, Sorting, Bucket Sort, Ordered Set	2024-04-19	Go
0463	Island Perimeter	Easy	Array, Depth-First Search, Breadth-First Search, Matrix	2024-04-18	Go
0988	Smallest String Starting From Leaf	Medium	String, Tree, Depth-First Search, Binary Tree	2024-04-17	Go
0623	Add One Row to Tree	Medium	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-04-16	Go
0129	Sum Root to Leaf Numbers	Medium	Tree, Depth-First Search, Binary Tree	2024-04-15	Go
0404	Sum of Left Leaves	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-04-14	Go
0085	Maximal Rectangle	Hard	Array, Dynamic Programming, Stack, Matrix, Monotonic Stack	2024-04-13	Go
0221	Maximal Square	Medium	Array, Dynamic Programming, Matrix	2024-04-13	Go
0219	Contains Duplicate II	Easy	Array, Hash Table, Sliding Window	2024-04-12	Go
0402	Remove K Digits	Medium	String, Stack, Greedy, Monotonic Stack	2024-04-11	Go
0496	Next Greater Element I	Easy	Array, Hash Table, Stack, Monotonic Stack	2024-04-11	Go
0950	Reveal Cards In Increasing Order	Medium	Array, Queue, Sorting, Simulation	2024-04-10	Go
2073	Time Needed to Buy Tickets	Easy	Array, Queue, Simulation	2024-04-09	Go
0978	Longest Turbulent Subarray	Medium	Array, Dynamic Programming, Sliding Window	2024-04-08	Go
0678	Valid Parenthesis String	Medium	String, Dynamic Programming, Stack, Greedy	2024-04-07	Go
0032	Longest Valid Parentheses	Hard	String, Dynamic Programming, Stack	2024-04-06	Go
1544	Make The String Great	Easy	String, Stack	2024-04-05	Go
0212	Word Search II	Hard	Array, String, Backtracking, Trie, Matrix	2024-04-05	Go
1614	Maximum Nesting Depth of the Parentheses	Easy	String, Stack	2024-04-04	Go
0079	Word Search	Medium	Array, String, Backtracking, Matrix	2024-04-03	Go
0205	Isomorphic Strings	Easy	Hash Table, String	2024-04-02	Go
0058	Length of Last Word	Easy	String	2024-04-01	Go
0765	Couples Holding Hands	Hard	Greedy, Depth-First Search, Breadth-First Search, Union Find, Graph	2024-03-31	Go
0268	Missing Number	Easy	Array, Hash Table, Math, Binary Search, Bit Manipulation, Sorting	2024-03-31	Go
2444	Count Subarrays With Fixed Bounds	Hard	Array, Queue, Sliding Window, Monotonic Queue	2024-03-31	Go Python
0004	Median of Two Sorted Arrays	Hard	Array, Binary Search, Divide and Conquer	2024-03-30	Go
0992	Subarrays with K Different Integers	Hard	Array, Hash Table, Sliding Window, Counting	2024-03-29	Go
2962	Count Subarrays Where Max Element Appears at Least K Times	Medium	Array, Sliding Window	2024-03-29	Go Python
2958	Length of Longest Subarray With at Most K Frequency	Medium	Array, Hash Table, Sliding Window	2024-03-28	Go
2302	Count Subarrays With Score Less Than K	Hard	Array, Binary Search, Sliding Window, Prefix Sum	2024-03-27	Go Python
0713	Subarray Product Less Than K	Medium	Array, Sliding Window	2024-03-27	Go
0041	First Missing Positive	Hard	Array, Hash Table	2024-03-26	Go
0442	Find All Duplicates in an Array	Medium	Array, Hash Table	2024-03-25	Go
0287	Find the Duplicate Number	Medium	Array, Two Pointers, Binary Search, Bit Manipulation	2024-03-24	Go
0143	Reorder List	Medium	Linked List, Two Pointers, Stack, Recursion	2024-03-23	Go
0234	Palindrome Linked List	Easy	Linked List, Two Pointers, Stack, Recursion	2024-03-22	Go
0010	Regular Expression Matching	Hard	String, Dynamic Programming, Recursion	2024-03-21	Go
1669	Merge In Between Linked Lists	Medium	Linked List	2024-03-20	Go
0621	Task Scheduler	Medium	Array, Hash Table, Greedy, Sorting, Heap (Priority Queue), Counting	2024-03-19	Go
2365	Task Scheduler II	Medium	Array, Hash Table, Simulation	2024-03-19	Go
0452	Minimum Number of Arrows to Burst Balloons	Medium	Array, Greedy, Sorting	2024-03-18	Go
0057	Insert Interval	Medium	Array	2024-03-17	Go
0056	Merge Intervals	Medium	Array, Sorting	2024-03-17	Go
0525	Contiguous Array	Medium	Array, Hash Table, Prefix Sum	2024-03-16	Go
0238	Product of Array Except Self	Medium	Array, Prefix Sum	2024-03-15	Go
0930	Binary Subarrays With Sum	Medium	Array, Hash Table, Sliding Window, Prefix Sum	2024-03-14	Go
2485	Find the Pivot Integer	Easy	Math, Prefix Sum	2024-03-13	Go
1171	Remove Zero Sum Consecutive Nodes from Linked List	Medium	Hash Table, Linked List	2024-03-12	Go
0791	Custom Sort String	Medium	Hash Table, String, Sorting	2024-03-11	Go
0349	Intersection of Two Arrays	Easy	Array, Hash Table, Two Pointers, Binary Search, Sorting	2024-03-10	Go
2540	Minimum Common Value	Easy	Array, Hash Table, Two Pointers, Binary Search	2024-03-09	Go
3005	Count Elements With Maximum Frequency	Easy	Array, Hash Table, Counting	2024-03-08	Go
0876	Middle of the Linked List	Easy	Linked List, Two Pointers	2024-03-07	Go
0141	Linked List Cycle	Easy	Hash Table, Linked List, Two Pointers	2024-03-06	Go
1750	Minimum Length of String After Deleting Similar Ends	Medium	Two Pointers, String	2024-03-05	Go
0948	Bag of Tokens	Medium	Array, Two Pointers, Greedy, Sorting	2024-03-04	Go
0019	Remove Nth Node From End of List	Medium	Linked List, Two Pointers	2024-03-03	Go
0977	Squares of a Sorted Array	Easy	Array, Two Pointers, Sorting	2024-03-02	Go
2864	Maximum Odd Binary Number	Easy	Math, String, Greedy	2024-03-01	Go
1609	Even Odd Tree	Medium	Tree, Breadth-First Search, Binary Tree	2024-02-29	Go
0513	Find Bottom Left Tree Value	Medium	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-02-28	Go
0647	Palindromic Substrings	Medium	String, Dynamic Programming	2024-02-28	Go
0543	Diameter of Binary Tree	Easy	Tree Depth-First Search Binary Tree	2024-02-27	Go
0121	Best Time to Buy and Sell Stock	Easy	Array, Dynamic Programming	2024-02-27	Go
0053	Maximum Subarray	Medium	Array, Divide and Conquer, Dynamic Programming	2024-02-27	Go
0516	Longest Palindromic Subsequence	Medium	String, Dynamic Programming	2024-02-26	Go
0100	Same Tree	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-02-26	Go Python
2709	Greatest Common Divisor Traversal	Hard	Array, Math, Union Find, Number Theory	2024-02-25	Go
0322	Coin Change	Medium	Array, Dynamic Programming, Breadth-First Search	2024-02-25	Go
0064	Minimum Path Sum	Medium	Array, Dynamic Programming, Matrix	2024-02-25	Go
0005	Longest Palindromic Substring	Medium	String, Dynamic Programming	2024-02-24	Go
2092	Find All People With Secret	Hard	Depth-First Search, Breadth-First Search, Union Find, Graph, Sorting	2024-02-24	Go
0787	Cheapest Flights Within K Stops	Medium	Dynamic Programming, Depth-First Search, Breadth-First Search, Graph, Heap (Priority Queue), Shortest Path	2024-02-23	Go
1143	Longest Common Subsequence	Medium	String, Dynamic Programming	2024-02-22	Go
0338	Counting Bits	Easy	Dynamic Programming, Bit Manipulation	2024-02-22	Go Python
0191	Number of 1 Bits	Easy	Divide and Conquer, Bit Manipulation	2024-02-22	Go
0190	Reverse Bits	Easy	Divide and Conquer, Bit Manipulation	2024-02-22	Go
0300	Longest Increasing Subsequence	Medium	Array, Binary Search, Dynamic Programming	2024-02-21	Go Python
0198	House Robber	Medium	Array, Dynamic Programming	2024-02-21	Go Python
0063	Unique Paths II	Medium	Array, Dynamic Programming, Matrix	2024-02-21	Go
0062	Unique Paths	Medium	Math, Dynamic Programming, Combinatorics	2024-02-21	Go
1091	Shortest Path in Binary Matrix	Medium	Array, Breadth-First Search, Matrix	2024-02-20	Go
0695	Max Area of Island	Medium	Array, Depth-First Search, Breadth-First Search, Union Find, Matrix	2024-02-20	Go
0133	Clone Graph	Medium	Hash Table, Depth-First Search, Breadth-First Search, Graph	2024-02-20	Go
1046	Last Stone Weight	Easy	Array, Heap (Priority Queue)	2024-02-19	Go
0973	K Closest Points to Origin	Medium	Array, Math, Divide and Conquer, Geometry, Sorting, Heap (Priority Queue), Quickselect	2024-02-19	Go
0146	LRU Cache	Medium	Hash Table, Linked List, Design, Doubly-Linked List	2024-02-19	Go Python
0703	Kth Largest Element in a Stream	Easy	Tree, Design, Binary Search Tree, Heap (Priority Queue), Binary Tree, Data Stream	2024-02-19	Go Python
0705	Design HashSet	Easy	Array, Hash Table, Linked List, Design, Hash Function	2024-02-19	Go
0706	Design HashMap	Easy	Array, Hash Table, Linked List, Design, Hash Function	2024-02-19	Go
0217	Contains Duplicate	Easy	Array, Hash Table, Sorting	2024-02-19	Go Python
0112	Path Sum	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-02-18	Go Python
0078	Subsets	Medium	Array, Backtracking, Bit Manipulation	2024-02-18	Go
0039	Combination Sum	Medium	Array, Backtracking	2024-02-18	Go
0701	Insert into a Binary Search Tree	Medium	Tree, Binary Search Tree, Binary Tree	2024-02-18	Go
0700	Search in a Binary Search Tree	Easy	Tree, Binary Search Tree, Binary Tree	2024-02-18	Go
0450	Delete Node in a BST	Medium	Tree, Binary Search Tree, Binary Tree	2024-02-18	Go
0235	Lowest Common Ancestor of a Binary Search Tree	Medium	Tree, Depth-First Search, Binary Search Tree, Binary Tree	2024-02-18	Go
0230	Kth Smallest Element in a BST	Medium	Tree, Depth-First Search, Binary Search Tree, Binary Tree	2024-02-17	Go
0105	Construct Binary Tree from Preorder and Inorder Traversal	Medium	Array, Hash Table, Divide and Conquer, Tree, Binary Tree	2024-02-17	Go
0094	Binary Tree Inorder Traversal	Easy	Stack, Tree, Depth-First Search, Binary Tree	2024-02-17	Go
0704	Binary Search	Easy	Array, Binary Search	2024-02-17	Go
0023	Merge k Sorted Lists	Hard	Linked List, Divide and Conquer, Heap (Priority Queue), Merge Sort	2024-02-16	Go
0912	Sort an Array	Medium	Array, Divide and Conquer, Sorting, Heap (Priority Queue), Merge Sort, Bucket Sort, Radix Sort, Counting Sort	2024-02-16	Go
0075	Sort Colors	Medium	Array, Two Pointers, Sorting	2024-02-16	Go Python
0070	Climbing Stairs	Easy	Math, Dynamic Programming, Memoization	2024-02-15	Go
0509	Fibonacci Number	Easy	Math, Dynamic Programming, Recursion, Memoization	2024-02-15	Go
1700	Number of Students Unable to Eat Lunch	Easy	Array, Stack, Queue, Simulation	2024-02-14	Go
0021	Merge Two Sorted Lists	Easy	Linked List, Recursion	2024-02-14	Go
1472	Design Browser History	Medium	Array, Linked List, Stack, Design, Doubly-Linked List, Data Stream	2024-02-14	Go
0707	Design Linked List	Medium	Linked List, Design	2024-02-14	Go Python
1470	Shuffle the Array	Easy	Array	2024-02-13	Go
0027	Remove Element	Easy	Array, Two Pointers	2024-02-13	Go
0026	Remove Duplicates from Sorted Array	Easy	Array, Two Pointers	2024-02-13	Go
1632	Rank Transform of a Matrix	Hard	Array, Union Find, Graph, Topological Sort, Sorting, Matrix	2024-02-12	Go
0273	Integer to English Words	Hard	Math, String, Recursion	2024-02-11	Go
0332	Reconstruct Itinerary	Hard	Depth-First Search, Graph, Eulerian Circuit	2024-02-10	Go
1028	Recover a Tree From Preorder Traversal	Hard	String, Tree, Depth-First Search, Binary Tree	2024-02-10	Go Python
0649	Dota2 Senate	Medium	String, Greedy, Queue	2024-02-09	Go
0224	Basic Calculator	Hard	Math, String, Stack, Recursion	2024-02-09	Go
2551	Put Marbles in Bags	Hard	Array, Greedy, Sorting, Heap (Priority Queue)	2024-02-09	Go Python
0432	All O`one Data Structure	Hard	Hash Table, Linked List, Design, Doubly-Linked List	2024-02-08	Go Python
0025	Reverse Nodes in k-Group	Hard	Linked List, Recursion	2024-02-08	Go
0076	Minimum Window Substring	Hard	Hash Table, String, Sliding Window	2024-02-08	Go
1093	Statistics from a Large Sample	Medium	Array, Math, Probability and Statistics	2024-02-07	Go
0295	Find Median from Data Stream	Hard	Two Pointers, Design, Sorting, Heap (Priority Queue), Data Stream	2024-02-07	Go Python
0239	Sliding Window Maximum	Hard	Array, Queue, Sliding Window, Heap (Priority Queue), Monotonic Queue	2024-02-06	Go Python
0355	Design Twitter	Medium	Hash Table, Linked List, Design, Heap (Priority Queue)	2024-02-05	Go
0208	Implement Trie (Prefix Tree)	Medium	Hash Table, String, Design, Trie	2024-02-04	Go
0225	Implement Stack using Queues	Easy	Stack, Design, Queue	2024-02-04	Go
0589	N-ary Tree Preorder Traversal	Easy	Stack, Tree, Depth-First Search	2024-02-03	Go
0429	N-ary Tree Level Order Traversal	Medium	Tree, Breadth-First Search	2024-02-03	Go
0387	First Unique Character in a String	Easy	Hash Table, String, Queue, Counting	2024-02-03	Go
0037	Sudoku Solver	Hard	Array, Hash Table, Backtracking, Matrix	2024-02-02	Go Python
0688	Knight Probability in Chessboard	Medium	Dynamic Programming	2024-02-01	Go
0746	Min Cost Climbing Stairs	Easy	Array, Dynamic Programming	2024-01-31	Go
0743	Network Delay Time	Medium	Depth-First Search, Breadth-First Search, Graph, Heap (Priority Queue), Shortest Path	2024-01-30	Go
0997	Find the Town Judge	Easy	Array, Hash Table, Graph	2024-01-29	Go
0207	Course Schedule	Medium	Depth-First Search, Breadth-First Search, Graph, Topological Sort	2024-01-28	Go
1376	Time Needed to Inform All Employees	Medium	Tree, Depth-First Search, Breadth-First Search	2024-01-27	Go
0074	Search a 2D Matrix	Medium	Array, Binary Search, Matrix	2024-01-26	Go
0073	Set Matrix Zeroes	Medium	Array, Hash Table, Matrix	2024-01-26	Go Python
0867	Transpose Matrix	Easy	Array, Matrix, Simulation	2024-01-25	Go
0994	Rotting Oranges	Medium	Array, Breadth-First Search, Matrix	2024-01-25	Go
0200	Number of Islands	Medium	Array, Depth-First Search, Breadth-First Search, Union Find, Matrix	2024-01-24	Go
0098	Validate Binary Search Tree	Medium	Tree, Depth-First Search, Binary Search Tree, Binary Tree	2024-01-23	Go Python
0222	Count Complete Tree Nodes	Easy	Binary Search, Bit Manipulation, Tree, Binary Tree	2024-01-22	Go
0199	Binary Tree Right Side View	Medium	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-01-21	Go
0102	Binary Tree Level Order Traversal	Medium	Tree, Breadth-First Search, Binary Tree	2024-01-20	Go
0104	Maximum Depth of Binary Tree	Easy	Tree, Depth-First Search, Breadth-First Search, Binary Tree	2024-01-19	Go Python
0034	Find First and Last Position of Element in Sorted Array	Medium	Array, Binary Search	2024-01-18	Go
0215	Kth Largest Element in an Array	Medium	Array, Divide and Conquer, Sorting, Heap (Priority Queue), Quickselect	2024-01-17	Go
0232	Implement Queue using Stacks	Easy	Stack, Design, Queue	2024-01-16	Go
1249	Minimum Remove to Make Valid Parentheses	Medium	String, Stack	2024-01-15	Go
0020	Valid Parentheses	Easy	String, Stack	2024-01-14	Go
0142	Linked List Cycle II	Medium	Hash Table, Linked List, Two Pointers	2024-01-13	Go
0430	Flatten a Multilevel Doubly Linked List	Medium	Linked List, Depth-First Search, Doubly-Linked List	2024-01-12	Go
0092	Reverse Linked List II	Medium	Linked List	2024-01-11	Go
0206	Reverse Linked List	Easy	Linked List, Recursion	2024-01-10	Go
0680	Valid Palindrome II	Easy	Two Pointers, String, Greedy	2024-01-09	Go
0125	Valid Palindrome	Easy	Two Pointers, String	2024-01-09	Go
0003	Longest Substring Without Repeating Characters	Medium	Hash Table, String, Sliding Window	2024-01-08	Go
0844	Backspace String Compare	Easy	Two Pointers, String, Stack, Simulation	2024-01-07	Go
0042	Trapping Rain Water	Hard	Array, Two Pointers, Dynamic Programming, Stack	2024-01-06	Go
0011	Container With Most Water	Medium	Array, Two Pointers, Greedy	2024-01-05	Go
0001	Two Sum	Easy	Array, Hash Table	2024-01-04	Go Python