标签：des c style class blog code
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 binary tree * 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==NULL && q==NULL) return true; if(p==NULL || q==NULL) return false; if(p->val==q->val) return isSameTree(p->left,q->left) && isSameTree(p->right,q->right); else return false; } };
标签：des c style class blog code
原文地址：http://www.cnblogs.com/erictanghu/p/3759589.html
