A collection of LeetCode questions to ace the coding interview! - Created using LeetHub v2

LeetCode Topics

Array

0001-two-sum
0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0035-search-insert-position
0053-maximum-subarray
0055-jump-game
0074-search-a-2d-matrix
0088-merge-sorted-array
0121-best-time-to-buy-and-sell-stock
0167-two-sum-ii-input-array-is-sorted
0189-rotate-array
0238-product-of-array-except-self
0268-missing-number
0540-single-element-in-a-sorted-array
0745-find-smallest-letter-greater-than-target
0792-binary-search
0861-flipping-an-image
0882-peak-index-in-a-mountain-array
0941-sort-array-by-parity
0948-sort-an-array
1335-maximum-candies-allocated-to-k-children
1421-find-numbers-with-even-number-of-digits
1603-running-sum-of-1d-array
1635-number-of-good-pairs
1677-matrix-diagonal-sum
1791-richest-customer-wealth
1878-check-if-array-is-sorted-and-rotated
2048-build-array-from-permutation
2551-apply-operations-to-an-array
2614-maximum-count-of-positive-integer-and-negative-integer
2707-merge-two-2d-arrays-by-summing-values
3227-find-missing-and-repeated-values
3334-apple-redistribution-into-boxes
3483-alternating-groups-ii

Hash Table

0001-two-sum
0268-missing-number
1635-number-of-good-pairs
2707-merge-two-2d-arrays-by-summing-values
3227-find-missing-and-repeated-values

Math

0009-palindrome-number
0069-sqrtx
0189-rotate-array
0268-missing-number
1013-fibonacci-number
1421-find-numbers-with-even-number-of-digits
1635-number-of-good-pairs
1889-check-if-number-is-a-sum-of-powers-of-three
2610-closest-prime-numbers-in-range
2649-count-total-number-of-colored-cells
3227-find-missing-and-repeated-values

Binary Search

0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0035-search-insert-position
0069-sqrtx
0074-search-a-2d-matrix
0167-two-sum-ii-input-array-is-sorted
0268-missing-number
0540-single-element-in-a-sorted-array
0745-find-smallest-letter-greater-than-target
0792-binary-search
0882-peak-index-in-a-mountain-array
1335-maximum-candies-allocated-to-k-children
2614-maximum-count-of-positive-integer-and-negative-integer

Divide and Conquer

0053-maximum-subarray
0948-sort-an-array

Dynamic Programming

0053-maximum-subarray
0055-jump-game
0121-best-time-to-buy-and-sell-stock
1013-fibonacci-number

Greedy

0055-jump-game
3334-apple-redistribution-into-boxes

Matrix

0074-search-a-2d-matrix
0861-flipping-an-image
1677-matrix-diagonal-sum
1791-richest-customer-wealth
3227-find-missing-and-repeated-values

Two Pointers

0088-merge-sorted-array
0167-two-sum-ii-input-array-is-sorted
0189-rotate-array
0861-flipping-an-image
0941-sort-array-by-parity
2551-apply-operations-to-an-array
2707-merge-two-2d-arrays-by-summing-values

Sorting

0088-merge-sorted-array
0268-missing-number
0941-sort-array-by-parity
0948-sort-an-array
3334-apple-redistribution-into-boxes

Prefix Sum

0238-product-of-array-except-self
1603-running-sum-of-1d-array

Bit Manipulation

0268-missing-number
0861-flipping-an-image

Recursion

1013-fibonacci-number

Memoization

1013-fibonacci-number

Simulation

0861-flipping-an-image
2048-build-array-from-permutation
2551-apply-operations-to-an-array

Heap (Priority Queue)

0948-sort-an-array

Merge Sort

0948-sort-an-array

Bucket Sort

0948-sort-an-array

Radix Sort

0948-sort-an-array

Counting Sort

0948-sort-an-array
1635-number-of-good-pairs
2614-maximum-count-of-positive-integer-and-negative-integer

Sliding Window

2463-minimum-recolors-to-get-k-consecutive-black-blocks
3483-alternating-groups-ii

String

2463-minimum-recolors-to-get-k-consecutive-black-blocks
3379-score-of-a-string

Number Theory

2610-closest-prime-numbers-in-range