Goldman Sachs

1 Min Stack Medium 2 Search a 2D Matrix Medium 3 Merge Two Sorted Lists Easy 4 LRU Cache Medium 5 Same Tree Easy 6 Kth Smallest Element in a BST Medium 7 Kth Largest Element in a Stream Easy 8 Subsets Medium 9 Letter Combinations of a Phone Number Medium 10 Rotting Oranges Medium 11 Word Ladder Hard 12 Climbing Stairs Easy 13 Coin Change Medium 14 Best Time to Buy and Sell Stock with Cooldown Medium 15 Burst Balloons Hard 16 Merge Triplets to Form Target Triplet Medium 17 Meeting Rooms II Medium 18 Pow(x, n) Medium 19 Missing Number Easy 20 Top K Frequent Elements Medium 21 3Sum Medium 22 Minimum Window Substring Hard 23 Car Fleet Medium 24 Time Based Key-Value Store Medium 25 Add Two Numbers Medium 26 Maximum Depth of Binary Tree Easy 27 Binary Tree Right Side View Medium 28 Implement Trie (Prefix Tree) Medium 29 Task Scheduler Medium 30 Combination Sum II Medium 31 Max Area of Island Medium 32 Redundant Connection Medium 33 Swim in Rising Water Hard 34 Longest Palindromic Substring Medium 35 Partition Equal Subset Sum Medium