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Submission #1074964

# Submission time Handle Problem Language Result Execution time Memory
1074964 2024-08-25T17:09:34 Z raduv Norela (info1cup18_norela) C++17
0 / 100
 16 ms 348 KB 
#include <bits/stdc++.h>
#define int long long
const int MAXM = 24;
const int MAXN = 60;
using namespace std;
long long v[MAXM];
signed main()
{
    int n, m, q, bit, i, mn;
    long long rez, mask, cmask;
    cin >> n >> m;
    for( i = 0; i < m; i++ ){
      cin >> q;
      while(q--){
        cin >> bit;
        bit--;
        v[i] |= (1 << bit);
      }
    }
    mn = m + 1;
    cmask = 0;
    for( mask = 0; mask < (1 << m); mask++ ){
      rez = 0;
      for( i = 0; i < m; i++ ){
        if(mask & (1 << i)){
          rez ^= v[i];
        }
      }
      if(__builtin_popcount(rez) == n && __builtin_popcount(mask) < mn){
        mn = __builtin_popcount(mask);
        cmask = mask;
      }
    }
    cout << mn << "\n";
    for( i = 0; i < m; i++ ){
      if(cmask & (1 << i))
        cout << i + 1 << " ";
    }
    return 0;
}

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 344 KB Output is correct
2 Incorrect 16 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 344 KB Output is correct
2 Incorrect 16 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 344 KB Output is correct
2 Incorrect 16 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 344 KB Output is correct
2 Incorrect 16 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -