A collection of leetcode Problems' Solutions.
| No. | Question | Topic/s |
|---|---|---|
| 104 | Maximum Depth of Binary Tree - py | Tree, Recursion |
| 146 | LRU Cache | Design, Doubly Linked-List, Hash-Table |
| 3 | Longest Substring Without Repeating Characters | Sliding-Window, Hash-Table, Set |
| 1 | Two Sum - py | Hash-Table, Array, Binary Search |
| 5 | Palindromic Substring - py | Dynamic-Programming, String, Manacher's Algo |
| 96 | Unique Binary Search Trees - py | Tree, Dynamic-Programming, Memoization, Recursion |
| 98 | Validate Binary Search Tree - py | Tree, Stack |
| 702 | Search in a Sorted Array of Unknown Size - py | Binary-Search |
| 763 | Partition Labels - py | Two-pointers, greedy |
| 703 | Kth Largest Element in a Stream - py | Hash |
| 200 | Number of Islands | BFS, DFS, Union Find, graph |
| 54 | Sprial Matrix - py | Array |
| 421 | Maximum XOR of Two Numbers in an Array | Trie, Bit Manipulation |
| 1171 | Count good meals | Array, Two Sum style, Bit Manipulation |
| 226 | Invert Binary Tree | Tree, Recursion |
| 617 | Merge Two Binary Trees | Tree, Recursion |
| 253 | Meeting Rooms II | Priority Queue/Heap |
| 973 | K Closest Points to Origin | Priority Queue/Heap |
| 1930 | Unique Length-3 Palindromic Subsequences | string, set |
| 238 | Product of Array Except Self | arrays |
| 133 | Clone Graph | Graph, DFS |
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