LeetCode Questions
- 51 n queens
- 52 n queens ii
- 53 maximum subarray
- 54 spiral matrix
- 55 jump game
- 56 merge intervals
- 57 insert interval
- 58 length of last word
- 59 spiral matrix ii
- 60 permutation sequence
- 61 rotate list
- 62 unique paths
- 63 unique paths ii
- 64 minimum path sum
- 65 valid number
- 66 plus one
- 67 add binary
- 68 text justification
- 69 sqrtx
- 70 climbing stairs
- 71 simplify path
- 72 edit distance
- 73 set matrix zeroes
- 74 search a 2d matrix
- 75 sort colors
- 76 minimum window substring
- 77 combinations
- 78 subsets
- 79 word search
- 80 remove duplicates from sorted array ii
- 81 search in rotated sorted array ii
- 82 remove duplicates from sorted list ii
- 83 remove duplicates from sorted list
- 84 largest rectangle in histogram
- 85 maximal rectangle
- 86 partition list
- 87 scramble string
- 88 merge sorted array
- 89 gray code
- 90 subsets ii
- 91 decode ways
- 92 reverse linked list ii
- 93 restore ip addresses
- 94 binary tree inorder traversal
- 95 unique binary search trees ii
- 96 unique binary search trees
- 97 interleaving string
- 98 validate binary search tree
- 99 recover binary search tree
- 100 same tree
98. Validate Binary Search Tree
Given the root of a binary tree, determine if it is a valid binary search tree (BST).
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