diff --git a/problems/0112.路径总和.md b/problems/0112.路径总和.md index 7aa5f2a1..b1f01336 100644 --- a/problems/0112.路径总和.md +++ b/problems/0112.路径总和.md @@ -155,14 +155,14 @@ public: 以上代码精简之后如下: ```cpp -class solution { +class Solution { public: bool hasPathSum(TreeNode* root, int sum) { - if (root == null) return false; + if (!root) return false; if (!root->left && !root->right && sum == root->val) { return true; } - return haspathsum(root->left, sum - root->val) || haspathsum(root->right, sum - root->val); + return hasPathSum(root->left, sum - root->val) || hasPathSum(root->right, sum - root->val); } }; ```