Lang:G++
Edit12345678910111213141516171819202122232425262728293031#include <set>#include <cstdio>using namespace std;int jiecheng(int m){int temp = 1;for (int i = 1; i <= m; ++i){temp *= i;}return temp;}int cmn(int m, int n){if (m<n){return 0;}return jiecheng(m) / jiecheng(m - n) / jiecheng(n);}int main(){set<int> total;//freopen("2.in", "r", stdin);int n, m, k;int temp;scanf("%d%d%d", &n, &m, &k);for (int i = 0;i<n;i++){scanf("%d", &temp);