Leetcode 100. Same Tree
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- Same Tree
Given two binary trees, write a function to check if they are equal or not.
Two binary trees are considered equal if they are structurally identical and the nodes have the same value.
/** * 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: bool isSameTree(TreeNode* p, TreeNode* q) { if(p==0) return q==0; if(q==0) return p==0; return isSameTree(p->left,q->left)&&isSameTree(p->right,q->right)&&p->val==q->val; }};阅读全文
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