Leetcode_Path Sum

递归实现即可

class Solution {
public:
    bool hasPathSum(TreeNode *root, int sum) {
		if(!root)
			return false;
		if(root->left ==nullptr&&root->right==nullptr&&root->val==sum)
			return true;
		return hasPathSum(root->left,sum-root->val)||hasPathSum(root->right,sum-root->val);

    }
};

时间： 2024-12-17 08:30:14

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