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Submission #524613

# Submission time Handle Problem Language Result Execution time Memory
524613 2022-02-09T16:02:44 Z lucri Norela (info1cup18_norela) C++17
100 / 100
 115 ms 332 KB 
#include <iostream>
using namespace std;
long long p[65],n,m,nrmin=100,cmin[30],q,x,nr[30];
bool ver[30];
void bck(long long poz,long long ceva,long long folosit)
{
    if(poz==0)
    {
        if(ceva!=p[n]-1)
            return;
        if(folosit<nrmin)
        {
            nrmin=0;
            for(long long i=1;i<=m;++i)
            {
                if(ver[i]==true)
                    cmin[++nrmin]=i;
            }
        }
        else if(folosit == nrmin) {
            int p = 1;
            for(long long i = 1; i <= m; i++) {
                if(cmin[p] == i && ver[i] == false) {
                    return ;
                }
                if(cmin[p] > i && ver[i] == true) {

                    nrmin=0;
                    for(long long i=1;i<=m;++i)
                    {
                        if(ver[i]==true)
                            cmin[++nrmin]=i;
                    }
                    return ;
                }
                if(cmin[p] == i && ver[i] == true) {
                    p++;
                }
            }
        }
        return;
    }
    bck(poz-1,ceva,folosit);
    ceva^=nr[poz];
    ver[poz]=true;
    bck(poz-1,ceva,folosit+1);
    ceva^=nr[poz];
    ver[poz]=false;
    return;
}
int main()
{
    p[0]=1;
    for(long long i=1;i<=60;++i)
        p[i]=p[i-1]*2;
    cin>>n>>m;
    for(long long i=1;i<=m;++i)
    {
        cin>>q;
        for(long long j=1;j<=q;++j)
        {
            cin>>x;
            nr[i]+=p[x-1];
        }
    }
    bck(m,0,0);
    cout<<nrmin<<'\n';
    for(long long i=1;i<=nrmin;++i)
        cout<<cmin[i]<<' ';
    return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 204 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 2 ms 204 KB Output is correct
6 Correct 3 ms 204 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 204 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 2 ms 204 KB Output is correct
6 Correct 3 ms 204 KB Output is correct
7 Correct 7 ms 292 KB Output is correct
8 Correct 14 ms 204 KB Output is correct
9 Correct 17 ms 204 KB Output is correct
10 Correct 15 ms 292 KB Output is correct
11 Correct 14 ms 288 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 204 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 2 ms 204 KB Output is correct
6 Correct 3 ms 204 KB Output is correct
7 Correct 7 ms 292 KB Output is correct
8 Correct 14 ms 204 KB Output is correct
9 Correct 17 ms 204 KB Output is correct
10 Correct 15 ms 292 KB Output is correct
11 Correct 14 ms 288 KB Output is correct
12 Correct 14 ms 204 KB Output is correct
13 Correct 29 ms 308 KB Output is correct
14 Correct 30 ms 204 KB Output is correct
15 Correct 30 ms 204 KB Output is correct
16 Correct 30 ms 204 KB Output is correct
17 Correct 29 ms 292 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 204 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 2 ms 204 KB Output is correct
6 Correct 3 ms 204 KB Output is correct
7 Correct 7 ms 292 KB Output is correct
8 Correct 14 ms 204 KB Output is correct
9 Correct 17 ms 204 KB Output is correct
10 Correct 15 ms 292 KB Output is correct
11 Correct 14 ms 288 KB Output is correct
12 Correct 14 ms 204 KB Output is correct
13 Correct 29 ms 308 KB Output is correct
14 Correct 30 ms 204 KB Output is correct
15 Correct 30 ms 204 KB Output is correct
16 Correct 30 ms 204 KB Output is correct
17 Correct 29 ms 292 KB Output is correct
18 Correct 57 ms 204 KB Output is correct
19 Correct 57 ms 272 KB Output is correct
20 Correct 110 ms 276 KB Output is correct
21 Correct 115 ms 284 KB Output is correct
22 Correct 110 ms 276 KB Output is correct
23 Correct 108 ms 268 KB Output is correct