摘要:
n个数取k个的集合自己写的代码:class Solution {public: vector<int>v1; vector<vector<int>>v; vector<vector<int>> combine(int n, int k) { v.clear(); vector<int>exist(n,0); add(exist,n,k,0); return v; } void add(vector<int>&exist,int n,int k,int cur) { if(cur<... 阅读全文