제출 #1339634

#제출 시각아이디문제언어결과실행 시간메모리
1339634athenaMake them Meet (EGOI24_makethemmeet)C++20
24 / 100
1 ms344 KiB
#include <bits/stdc++.h>
using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n,m;
    cin>>n>>m;
    for(int i=0;i<m;i++)
    {
        int u,v;
        cin>>u>>v;
    }
    cout<<n<<endl;
    for(int o=0;o<n;o++)
    {
        vector<int>c(n,0);
        if(o%2==0){
        for(int i=0;i<n;i++)
            c[i]=i/2+1;
        }
        else
        {
            for(int i=0;i<n;i++)
                c[i]=(i+1)/2;
        }
        for(int i=0;i<n;i++)
            cout<<c[i]<<" ";
        cout<<endl;
    }
    return 0;
}
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