oj.uz

Submission #859495

# Submission time Handle Problem Language Result Execution time Memory
859495 2023-10-10T08:49:02 Z Tenis0206 Newspapers (CEOI21_newspapers) C++11
0 / 100
 1 ms 600 KB 
#include <bits/stdc++.h>

using namespace std;

const int nmax = 1e3;

int n,m;

vector<int> G[nmax + 5];

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    #ifdef home
    freopen("nr.in","r",stdin);
    freopen("nr.out","w",stdout);
    #endif // home
    cin>>n>>m;
    for(int i=1;i<n;i++)
    {
        int x,y;
        cin>>x>>y;
        G[x].push_back(y);
        G[y].push_back(x);
    }
    if(n > 3)
    {
        cout<<"NO"<<'\n';
        return 0;
    }
    cout<<"YES"<<'\n';
    if(n==1)
    {
        cout<<"1\n1\n";
        return 0;
    }
    if(n==2)
    {
        cout<<"2"<<'\n';
        cout<<"1 1"<<'\n';
        return 0;
    }
    if(n==3)
    {
        cout<<"2"<<'\n';
        cout<<"2 2"<<'\n';
        return 0;
    }
    return 0;
}

Subtask #1
0.0 / 12.0

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

Subtask #2
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0.0 / 80.0

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