Submission #1005525

#	Time	Username	Problem	Language	Result	Execution time	Memory
1005525		vjudge1	Untitled (POI11_imp)	C++17	27 / 100	1284 ms	65536 KiB

Main

#include <bits/stdc++.h>
//#include "Allincludes.h"
typedef long long ll;
using namespace std;
#define int long long
vector<vector<int>>e;
map<pair<int, int>, bool>f;
signed main(){
    int n, m;
    cin >> n >> m;
    e.resize(n+1);
    while(m--){
        int a, b;
        cin >> a >> b;
        e[a].push_back(b);
        e[b].push_back(a);
        f[{a, b}] = 1;
        f[{b, a}] = 1;
    }
    bool ii[n+1];
    fill(ii, ii + n+1, 0);
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= n; j++){
            if(!ii[i] && !ii[j]){
                if(i != j && f[{i, j}] == 0){
                    ii[i] = 1;
                    ii[j] = 1;
                    for(auto x : e[i]){
                        f[{i, x}] = 0;
                        f[{x, i}] = 0;
                    }
                    for(auto x : e[j]){
                        f[{x, j}] = 0;
                        f[{j, x}] = 0;
                    }
                }
            }
        }
    }
    vector<int>ans;
    for(int i = 1; i <= n; i++){
        for(auto x : e[i]){
            if(f[{i, x}]){
                ans.push_back(i);
                break;
            }
            if(f[{x, i}]){
                ans.push_back(i);
                break;
            }
        }
    }
    int y = n/3;
    for(int i = 0; i < y; i++){
        cout << ans[i] << " ";
    }
}

• Subtask 1: 9 / 9
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 0 / 9
• Subtask 5: 0 / 9
• Subtask 6: 0 / 9
• Subtask 7: 0 / 9
• Subtask 8: 0 / 9
• Subtask 9: 0 / 9
• Subtask 10: 0 / 9
• Subtask 11: 0 / 10