제출 #1037553

#제출 시각아이디문제언어결과실행 시간메모리
103755312345678수천개의 섬 (IOI22_islands)C++17
5 / 100
19 ms3412 KiB
#include "islands.h"
#include <bits/stdc++.h>

using namespace std;

int cnt[2];

std::variant<bool, std::vector<int>> find_journey(int N, int M, std::vector<int> U, std::vector<int> V) {
    vector<int> cnt(2), ida(2), idb(1);
    for (int i=0; i<M; i++) 
    {
        if (U[i]==0)
        {
            if (cnt[U[i]]<2) ida[cnt[U[i]]++]=i; 
        }
        else
        {
            if (cnt[U[i]]<1) idb[cnt[U[i]]++]=i;
        }
    }
    if (cnt[0]>=2&&cnt[1]>=1) 
    {
        return vector<int> {ida[0], idb[0], ida[1], ida[0], idb[0], ida[1]};
    }
    return false;
}
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