题目链接：https://leetcode.com/problems/same-tree/#/description
/**
* 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==NULL && q==NULL){
return true;
}else if((p==NULL&&q!=NULL)||(p!=NULL&&q==NULL)||(q->val!=p->val)){
return false;
}else{
bool tmp=isSameTree(p->left,q->left);
bool tmp1=isSameTree(p->right,q->right);
if(tmp&&tmp1) return true;
else return false;
}
}
};
