Leetcode-5017 Sum of Root To Leaf Binary Numbers(從根到葉的二進制數之和)

阿新 • • 發佈：2019-04-07

void leaf int ret number ber numbers num bin

 1 typedef long long ll;
 2 class Solution
 3 {
 4     public:
 5         ll rnt = 0;
 6         void go(TreeNode* root,int val)
 7         {
 8             val = (val*2+root->val)%1000000007;
 9             if(root->left==NULL && root->right==NULL)
10             {
11                 rnt = (rnt+val)%1000000007 
;return ;
12             }
13             if(root->left)
14             go(root->left,val);
15             if(root->right)
16             go(root->right,val);
17         }
18         int sumRootToLeaf(TreeNode* root)
19         {
20             if(!root) return 0;
21             go(root,0 
);
22             return rnt;
23         }
24 };

沒取余WA了兩發，氣死我了

void leaf int ret number ber numbers num bin 1 typedef long long ll; 2 class Solution 3 { 4 public: 5 ll rnt = 0;

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