#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <iostream>
#include <cctype>
#include <ctime>
#include <set>
#include <algorithm>
#include <vector>
#include <queue>
#include <stack>
#include <utility>
#include <string>
#include <map>
using namespace std;
int n, b, x, y, m, l;
set <int> s;
int mem[1048580];
int main() {
cin >> n;
l = (1<<n);
b = l;
/*cout << s.size();*/
cin >> m;
for (int i = 0; i < m; i++){
cin >> x >> y;
for (int j = 0; j < l; j++){
if (j&(1<<(x-1)) and j&(1<<(y-1))){
/*cout << i << endl;*/
s.insert(i);
}
}
}
if (m != 0) l--;
cout << l - s.size();
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
4 ms |
420 KB |
Output isn't correct |
2 |
Incorrect |
3 ms |
420 KB |
Output isn't correct |
3 |
Execution timed out |
1039 ms |
596 KB |
Time limit exceeded |
4 |
Incorrect |
881 ms |
740 KB |
Output isn't correct |
5 |
Incorrect |
629 ms |
740 KB |
Output isn't correct |
6 |
Incorrect |
222 ms |
740 KB |
Output isn't correct |
7 |
Incorrect |
142 ms |
740 KB |
Output isn't correct |
8 |
Incorrect |
142 ms |
740 KB |
Output isn't correct |
9 |
Incorrect |
33 ms |
740 KB |
Output isn't correct |
10 |
Incorrect |
8 ms |
740 KB |
Output isn't correct |