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Update 二叉树中递归带着回溯.md

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2021-12-27 09:27:45 +08:00
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problems/二叉树中递归带着回溯.md
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@ -90,8 +90,7 @@ public:
如下为精简之后的递归代码：(257. 二叉树的所有路径) 如下为精简之后的递归代码：(257. 二叉树的所有路径)
CPP ```CPP
```
class Solution { class Solution {
private: private:
void traversal(TreeNode* cur, string path, vector<string>& result) { void traversal(TreeNode* cur, string path, vector<string>& result) {
@ -132,8 +131,7 @@ traversal(cur->left, path, result); // 左
即： 即：
``` ``` CPP
if (cur->left) { if (cur->left) {
path += "->"; path += "->";
traversal(cur->left, path, result); // 左 traversal(cur->left, path, result); // 左