제출 #1329439

#제출 시각아이디문제언어결과실행 시간메모리
1329439liptonekMake them Meet (EGOI24_makethemmeet)C++20
0 / 100
1 ms344 KiB
#include <bits/stdc++.h>
using namespace std;

int n,m;

bool visited[105];

vector<int> adj[105];
vector<pair<int,int>> moves;

void dfs(int u)
{
    visited[u]=true;

    for(int v : adj[u])
    {
        if(!visited[v])
        {
            dfs(v);

            moves.push_back({v,u});
        }
    }
}

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

    cin>>n>>m;

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

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

    dfs(0);

    cout<<moves.size()<<endl;

    for(auto const& p : moves)
    {
        int u=p.first;
        int v=p.second;

        vector<int> colors(n);

        colors[u]=1;
        colors[v]=1;

        int cur=0;

        if(cur==1)
        {
            cur++;
        }

        for(int i=0; i<n; i++)
        {
            if(i!=u && i!=v)
            {
                colors[i]=cur++;

                if(cur==1)
                {
                    cur++;
                }
            }
        }

        for(int i=0; i<n; i++)
        {
            cout<<colors[i]<<(i==n-1 ? "" : " ");
        }

        cout<<endl;
    }

    return 0;
}
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