This is an archive of my technical notes, experiments, and study logs across frontend engineering, algorithms, systems, and AI.
Easy
- Easy 766. Toeplitz Matrix
Medium
- Medium 838. Push Dominoes
- Medium 581. Shortest Unsorted Continuous Subarray
- Medium 820. Short Encoding of Words
- Medium 12. Int to Roman
- Medium 2456. Most Popular Video Creator
- Medium 204. Count Primes
Hard
- Hard 2227. Encrypt and Decrypt Strings
- Hard 2321. Maximum Score Of Spliced Array
- Hard 1473. Paint House III
- Hard 2458. Height of Binary Tree After Subtree Removal Queries
- Hard 1293. Shortest Path in a Grid with Obstacles Elimination
- Hard 76. Minimum Window Substring
- Hard 1531. String Compression II
- Hard 295. Find Median from Data Stream