100. Same Treenode
Given two binary trees, write a function to check if they are equal or not.ide
Two binary trees are considered equal if they are structurally identical and the nodes have the same value.spa
題目大意:orm
判斷兩個二叉樹是否徹底相同。包括他們節點的內容。遞歸
代碼以下:(遞歸版)it
/** * 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) { bool childResult; if( NULL == p && NULL == q) return true; if( NULL != p && NULL != q && p->val == q->val) { return childResult = isSameTree(p->left,q->left) && isSameTree(p->right,q->right); } return false; } };
2016-08-07 00:01:38io