LeetCode Top Interview 150 - LeetCode Python/Java/C++/JS

LeetCode Problem & Solution Link	Difficulty	Approaches	Expl. Detail
27. Remove Element	Easy	2 Methods	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
42. Trapping Rain Water	Hard		Simplified Steps
28. Find the Index of the First Occurrence in a String	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