[LeetCode练习题-C语言]100. Same Tree

[LeetCode练习题-C语言]100. Same Tree

题目

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.

我的答案如下：
“`c
/**
* Definition for a binary tree node.
* struct TreeNode {
* int val;
* struct TreeNode *left;
* struct TreeNode *right;
* };
*/
bool isSameTree(struct TreeNode* p, struct TreeNode* q) {
if ((p == NULL && q == NULL) || (p != NULL && q != NULL && (p->val == q->val) && isSameTree(p->left,q->left) && isSameTree(p->right,q->right))){
return true;
}
return false;
}