LeetCode Python/Java/C++/JS > LeetCode Top Interview 150
| LeetCode Problem & Solution Link | Difficulty | Supported Languages | Approaches | Expl. Detail |
|---|---|---|---|---|
| 88. Merge Sorted Array |
Easy |
Step by Step | ||
| 27. Remove Element |
Easy |
2 Methods | Step by Step | |
| 26. Remove Duplicates from Sorted Array |
Easy |
Step by Step | ||
| 169. Majority Element |
Easy |
Step by Step | ||
| 121. Best Time to Buy and Sell Stock |
Easy |
Only Answer | ||
| 122. Best Time to Buy and Sell Stock II |
Medium |
Only Answer | ||
| 238. Product of Array Except Self |
Medium |
2 Methods | Step by Step | |
| 42. Trapping Rain Water |
Hard |
Simplified Steps | ||
| 13. Roman to Integer |
Easy |
Step by Step | ||
| 58. Length of Last Word |
Easy |
Step by Step | ||
| 14. Longest Common Prefix |
Easy |
Step by Step | ||
| 151. Reverse Words in a String |
Medium |
Step by Step | ||
| 28. Find the Index of the First Occurrence in a String |
Easy |
Step by Step | ||
| 125. Valid Palindrome |
Easy |
Step by Step | ||
| 392. Is Subsequence |
Medium |
2 Methods | Step by Step | |
| 15. 3Sum |
Medium |
2 Methods | Step by Step | |
| 209. Minimum Size Subarray Sum |
Medium |
Step by Step | ||
| 383. Ransom Note |
Easy |
Step by Step | ||
| 242. Valid Anagram |
Easy |
Step by Step | ||
| 49. Group Anagrams |
Medium |
Only Answer | ||
| 1. Two Sum |
Easy |
3 Methods | Step by Step | |
| 202. Happy Number |
Easy |
Step by Step | ||
| 20. Valid Parentheses |
Easy |
Step by Step | ||
| 19. Remove Nth Node From End of List |
Medium |
Step by Step | ||
| 200. Number of Islands |
Medium |
3 Methods | Step by Step | |
| 207. Course Schedule |
Medium |
2 Methods | Step by Step | |
| 433. Minimum Genetic Mutation |
Medium |
3 Methods | Simplified Steps | |
| 127. Word Ladder |
Hard |
Simplified Steps | ||
| 53. Maximum Subarray |
Medium |
2 Methods | Step by Step | |
| 198. House Robber |
Medium |
Only Answer | ||
| 139. Word Break |
Medium |
Only Answer | ||
| 322. Coin Change |
Medium |
Only Answer | ||
| 300. Longest Increasing Subsequence |
Medium |
Only Answer | ||
| 5. Longest Palindromic Substring |
Medium |
Step by Step | ||
| 72. Edit Distance |
Medium |
Step by Step | ||
| 123. Best Time to Buy and Sell Stock III |
Hard |
Only Answer | ||
| 188. Best Time to Buy and Sell Stock IV |
Hard |
Only Answer |