제출 #104664

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
104664		MatesV13	Geppetto (COCI15_geppetto)	C++11	80 / 80	42 ms	384 KiB

geppetto

#include <bits/stdc++.h>
using namespace std;
long long n, m, ans;
bool sastojci[25], ok;
pair<int, int> fuj[500];
void pizza(int i){
	for (int j=1;j<=n;j++){
		sastojci[j] = i%2;
		i=i/2;
	}
}
int main (){
ios::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
	cin >> n >> m;
	for (int i=0;i<m;i++){
		int a, b;
		cin >> a >> b;
		fuj[i]=make_pair(a,b);
	}
	long long x = pow(2.0, (double)n);
	for (int i=0;i<x;i++){
		ok = true;
		pizza(i);
		for (int j=0;j<m;j++)if (sastojci[fuj[j].first] and sastojci[fuj[j].second]) {ok=0; break;}
		if (ok) ans++;
	}
	cout << ans;
return 0;
}

• Subtask 1: 80 / 80