Submission #1005486

#	Time	Username	Problem	Language	Result	Execution time	Memory
1005486		vjudge1	Untitled (POI11_imp)	C++17	100 / 100	672 ms	50344 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
#define endl "\n"
int erased[3000],f[3001][3001];
vector <int> v[3001];
signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    int n,m;
    cin>>n>>m;
    for(int i=0;i<m;i++){
        int a,b;
        cin>>a>>b;
        f[a][b]=f[b][a]=1;
    }
    for(int i=1;i<=n;i++) for(int j=1;j<=n;j++) if(i!=j&&f[i][j]==0) v[i].push_back(j);
    int cnt=0;
    for(int i=1;i<=n&&cnt<n/3;i++){
        if(erased[i]==1) continue;
        for(int j:v[i]){
            if(erased[j]==0){
                cnt++;
                erased[j]=1;
                erased[i]=1;
                break;
            }
        }
    }
    cnt=0;
    for(int i=1;i<=n&&cnt<n/3;i++){
        if(erased[i]==0){
            cout<<i<<" ";
            cnt++;
        }
    }
    return 0;
}

• Subtask 1: 9 / 9
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 9 / 9
• Subtask 6: 9 / 9
• Subtask 7: 9 / 9
• Subtask 8: 9 / 9
• Subtask 9: 9 / 9
• Subtask 10: 9 / 9
• Subtask 11: 10 / 10