代码解决 class Solution {public:vector<int> res; // 当前组合的临时存储vector<vector<int>> result; // 存储所有符合条件的组合// 回溯函数void backtracing(vector<int>& candidates, int target, int flag, int index, vector<bool>&
B. Chips http://codeforces.com/problemset/problem/333/B time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Gerald play