leetcode 235. Lowest Common Ancestor of a Binary Search Tree
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/** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */class Solution {public: TreeNode* lowestCommonAncestor(TreeNode* root, TreeNode* p, TreeNode* q) { int a1 = p->val,a2 = q->val; if(a1 > a2) swap(a1,a2); while(1){ if(root->val < a1) root = root->right; else if(root->val > a2)root = root->left; else return root; } }}; 0 0
- LeetCode 235. Lowest Common Ancestor of a Binary Search Tree
- [leetcode] 235.Lowest Common Ancestor of a Binary Search Tree
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