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Submission #691772

# Submission time Handle Problem Language Result Execution time Memory
691772 2023-01-31T14:19:41 Z MateiKing80 Norela (info1cup18_norela) C++14
0 / 100
 3 ms 212 KB 
#include <bits/stdc++.h>
using namespace std;

int sol,nrsol=2100000000,n,m;
long long vr[30];

void bkt(long long nrc, int poz, int ans, int cnt)
{
    if(poz==m)
    {
        if(nrc==(1<<n)-1)
        {
            if(nrsol>cnt)
            {
                nrsol=cnt;
                sol=ans;
            }
        }
        return ;
    }
    bkt(nrc^vr[poz],poz+1,ans^(1<<poz),cnt+1);
    bkt(nrc,poz+1,ans,cnt);
}
int main()
{
    cin.sync_with_stdio(false);
    cin.tie(0);
    cin>>n>>m;
    for(int i=0; i<m; i++)
    {
        int q;
        cin>>q;
        for(int j=0; j<q; j++)
        {
            int x;
            cin>>x;
            x--;
            vr[i]^=(1<<(x));
        }
    }
    bkt(0,0,0,0);
    cout<<nrsol<<'\n';
    for(int i=0; i<=m-1; i++)
        if(sol&(1<<i))
            cout<<i+1<<" ";
    cout<<'\n';
    return 0;
}

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 212 KB Output is correct
2 Incorrect 2 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 212 KB Output is correct
2 Incorrect 2 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 212 KB Output is correct
2 Incorrect 2 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 212 KB Output is correct
2 Incorrect 2 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -