제출 #764253

#제출 시각아이디문제언어결과실행 시간메모리
764253raysh07수천개의 섬 (IOI22_islands)C++17
5 / 100
30 ms4436 KiB
#include "islands.h"
#include <variant>
#include <bits/stdc++.h>
using namespace std;
 
variant<bool, vector<int>> find_journey(int n, int m, vector<int> u, vector<int> v) {
    vector <int> a[2];
    for (int i = 0; i < m; i++){
        a[u[i]].push_back(i);
    }
    
    if (a[0].size() >= 2 && a[1].size() >= 1){
        vector <int> ans;
        ans.push_back(a[0][0]);
        ans.push_back(a[1][0]);
        ans.push_back(a[0][1]);
        ans.push_back(a[0][0]);
        ans.push_back(a[1][0]);
        ans.push_back(a[0][1]);
        return ans;
    } else return false;
}
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