😊1.题目

尝试一下该题

😉2.解法

/*** 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)return p==q;elsereturn q->val ==p->val && isSameTree(q->left,p->left) &&isSameTree(q->right,p->right);
}