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更新代码块
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@ -173,7 +173,7 @@ for循环每次从startIndex开始遍历,然后用path保存取到的节点i
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代码如下:
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```C++
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```CPP
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for (int i = startIndex; i <= n; i++) { // 控制树的横向遍历
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path.push_back(i); // 处理节点
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backtracking(n, k, i + 1); // 递归:控制树的纵向遍历,注意下一层搜索要从i+1开始
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@ -188,7 +188,7 @@ backtracking的下面部分就是回溯的操作了,撤销本次处理的结
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关键地方都讲完了,组合问题C++完整代码如下:
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```C++
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```CPP
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class Solution {
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private:
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vector<vector<int>> result; // 存放符合条件结果的集合
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