제출 #604778

#제출 시각아이디문제언어결과실행 시간메모리
604778MilosMilutinovicGeppetto (COCI15_geppetto)C++14
80 / 80
536 ms332 KiB
/** * author: wxhtzdy * created: 25.07.2022 11:41:41 **/ #include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(false); cin.tie(0); int n, m; cin >> n >> m; vector<vector<bool>> g(n, vector<bool>(n)); for (int i = 0; i < m; i++) { int a, b; cin >> a >> b; --a; --b; g[a][b] = g[b][a] = true; } int ans = 0; for (int t = 0; t < (1 << n); t++) { bool ok = true; for (int i = 0; i < n; i++) { if (t >> i & 1) { for (int j = 0; j < n; j++) { if (t >> j & 1) { ok = (ok & !g[i][j]); } } } } if (ok) { ans += 1; } } cout << ans << '\n'; return 0; }
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