Submission #593959

#	Time	Username	Problem	Language	Result	Execution time	Memory
593959		vladislav11	Newspapers (CEOI21_newspapers)	C++14	4 / 100	1 ms	340 KiB

newspapers

#include <bits/stdc++.h>

using namespace std;

int n, m;
vector< vector<int> > grp;

int main ()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    cin >> n >> m;

    grp.resize( n+1 );

    for ( int i=0; i<m; i++ )
    {
        int u, v;
        cin >> u >> v;

        grp[u].push_back( v );
        grp[v].push_back( u );
    }

    cout << "YES\n";

    if ( n == 1 )
    {
        cout << "1\n1\n";
        return 0;
    }

    if ( n == 2 )
    {
        cout << "1\n1\n";
        return 0;
    }

    vector<int> ans;

    for ( int i=n-1; i>1; i-- )
        ans.push_back( i );

    for ( int i=n-1; i>1; i-- )
        ans.push_back( i );

    cout << ans.size() << '\n';

    for ( auto& el : ans )
        cout << el << ' ';
    cout << '\n';

    return 0;
}

• Subtask 1: 0 / 12
• Subtask 2: 4 / 8
• Subtask 3: 0 / 80