砝码称重

#include<iostream>#include<cstdio>#include<cstring>#include<set>#include<vector>#include<fstream>using namespace std;int a[10];int main(){ifstream inFile("C:\\Users\\DELL\\Desktop\\in.txt", ios::in);a[1] = 1;a[2] = 2;a[3] = 3;a[4] = 5;a[5] = 10;a[6] = 20;set<int> b;b.insert(0);for (int i = 1; i <= 6; ++i){int k;inFile >> k;for (int j = 0; j < k; ++j){vector<int> c;for (set<int>::iterator it = b.begin(); it != b.end(); ++it){c.push_back(*it + a[i]);}b.insert(c.begin(), c.end());c.clear();}}for (auto it = b.begin(); it != b.end(); ++it){if (*it>0)cout << *it << endl;}cout << b.size()-1 << endl;system("pause");return 0;}