#include using namespace std; int xie[26], nxie[26]; int wei[13], h[13]; int sum; void dfs(int d, int n) { if (d == n) { sum++; if (sum <= 3) { for (int i = 0; i < n; i++) { cout << wei[i]+1 << ' '; } cout << endl; } } for (int i=0;i> n; dfs(0, n); cout << sum; return 0; }