Master these coding challenges to ace your next technical interview. Handpicked problems with personalized spaced repetition.
Showing 13 of 66 problems in NeetCode 150.
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| Status | Title | Difficulty |
|---|---|---|
| 1. Two Sum | Easy | |
| 3. Longest Substring Without Repeating Characters | Medium | |
| 49. Group Anagrams | Medium | |
| 73. Set Matrix Zeroes | Medium | |
| 105. Construct Binary Tree from Preorder and Inorder Traversal | Medium | |
| 127. Word Ladder | Hard | |
| 128. Longest Consecutive Sequence | Medium | |
| 133. Clone Graph | Medium | |
| 139. Word Break | Medium | |
| 141. Linked List Cycle | Easy | |
| 169. Majority Element | Easy | |
| 208. Implement Trie (Prefix Tree) | Medium | |
| 217. Contains Duplicate | Easy |