leetcode 88 Merge Sorted Array easy
leetcode 27 Remove Element easy
leetcode 26 Remove Repeat Element easy
leetcode 80 Remove Duplicates from Sorted Array II mid
leetcode 169 Majority Element easy
leetcode 189 Rotate Array mid
leetcode 121 best time buy and sell stock easy
leetcode 122 best time buy and sell stock II mid
leetcode 55 jump game mid
leetcode 45 jump game II mid
leetcode 274 H Index mid
leetcode 380 O(1) delet insert and get mid
leetcode 238 Product of Array Except Self mid
leetcode 134 Gas Station mid
leetcode 13 Roman to Integer easy
leetcode 12 Integer to Roman easy
leetcode 58 Length of Last Word easy
leetcode 135 Candy hard
leetcode 42 Rain hard
leetcode 42 Longest Common Prefix easy
leetcode 151 reverse words easy
leetcode 6 convert mid
leetcode 28 Find the Index of the First Occurrence in a String easy KMP
leetcode 68 Text Justification hard Meaningless