题解 | #二叉树中和为某一值的路径(一)#
二叉树中和为某一值的路径(一)
http://www.nowcoder.com/practice/508378c0823c423baa723ce448cbfd0c
/**
* struct TreeNode {
* int val;
* struct TreeNode *left;
* struct TreeNode *right;
* };
*/
class Solution {
public:
/**
*
* @param root TreeNode类
* @param sum int整型
* @return bool布尔型
*/
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);
// write code here
}
};
https://www.cnblogs.com/grandyang/p/4036961.html
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