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Array 7 Search 16 Stack 4 Linked List 9 String 8 Queue 3 HashTable 10 Dynamic Programming 32 Recursion 12 Divide and Conquer 3 Graph 7 Greedy 2 Math 4 Sort 2 SQL 38 Double Pointers 2 Binary Tree 12 BST 4 Brain Teaser 3 Summary 13 Customized Sort 1 Heap 1 Skill Set 16 Others 1 Simulation 1 Python 1 Monotonic Stack 1
LC 42 & LC 85 LC 42 & LC 85
Solution to LeetCode 42 Trapping Rain Water and LeetCode 84 LeetCode 42Trapping Rain Water (Hard) [link] 1] Brute Force
2022-06-06 Double Pointers
Double Pointers Dynamic Programming
LC 15 & LC 18 LC 15 & LC 18
Solution to LeetCode 15 3Sum and LeetCode 18 4Sum. LeetCode 153 Sum (Medium) [link] HashTable is not the best method her
2022-05-13 Double Pointers
Double Pointers