C语言 | Leetcode C语言题解之第226题翻转二叉树
题目：
题解：
struct TreeNode* invertTree(struct TreeNode* root) {if (root == NULL) {return NULL;}struct TreeNode* left = invertTree(root->left);struct TreeNode* right = invertTree(root->right);root->left = right;root->right = left;return root;
}