A community-curated list of 75 LeetCode questions that cover the most important patterns for coding interviews.
| Contains Duplicate | Easy | |
| Valid Anagram | Easy | |
| Two Sum | Easy | |
| Group Anagrams | Medium | |
| Top K Frequent Elements | Medium | |
| Product of Array Except Self | Medium | |
| Encode and Decode Strings | Medium | |
| Longest Consecutive Sequence | Medium |
| Valid Palindrome | Easy | |
| 3Sum | Medium | |
| Container With Most Water | Medium |
| Combination Sum | Medium | |
| Word Search | Medium |
| Number of Islands | Medium | |
| Clone Graph | Medium | |
| Pacific Atlantic Water Flow | Medium | |
| Course Schedule | Medium |
| Climbing Stairs | Easy | |
| House Robber | Medium | |
| House Robber II | Medium | |
| Longest Palindromic Substring | Medium | |
| Palindromic Substrings | Medium | |
| Decode Ways | Medium | |
| Coin Change | Medium | |
| Maximum Product Subarray | Medium | |
| Word Break | Medium | |
| Longest Increasing Subsequence | Medium |
| Unique Paths | Medium | |
| Longest Common Subsequence | Medium |
| Maximum Subarray | Medium | |
| Jump Game | Medium |
| Insert Interval | Medium | |
| Merge Intervals | Medium | |
| Non-overlapping Intervals | Medium | |
| Meeting Rooms | Easy | |
| Meeting Rooms II | Medium |
| Rotate Image | Medium | |
| Spiral Matrix | Medium | |
| Set Matrix Zeroes | Medium |
| Number of 1 Bits | Easy | |
| Counting Bits | Easy | |
| Reverse Bits | Easy | |
| Missing Number | Easy | |
| Sum of Two Integers | Medium |