Simple in c++


  • 0
    A
    class Solution {
    public:
        TreeNode* invertTree(TreeNode* root) {
            if (root == NULL)
                return NULL;
            
            TreeNode *tmp = root->left;
            root->left = root->right;
            root->right = tmp;
            
            invertTree(root->left);
            invertTree(root->right);
            return root;
        }
    };
    

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