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GoodLiang
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@ -114,7 +114,7 @@ vector<vector<int>> result; // 存放符合条件结果的集合
vector<int> path; // 用来存放符合条件结果
```
其实不定义这两个全局遍历也是可以的，把这两个变量放进递归函数的参数里，但函数里参数太多影响可读性，所以我定义全局变量了。
其实不定义这两个全局变量也是可以的，把这两个变量放进递归函数的参数里，但函数里参数太多影响可读性，所以我定义全局变量了。
函数里一定有两个参数，既然是集合n里面取k的数，那么n和k是两个int型的参数。