제출 #954696

#제출 시각아이디문제언어결과실행 시간메모리
954696n1k수천개의 섬 (IOI22_islands)C++17
6.75 / 100
27 ms6484 KiB
#include "islands.h"

#include <bits/stdc++.h>

using namespace std;


std::variant<bool, std::vector<int>> find_journey(int N, int M, std::vector<int> U, std::vector<int> V) {
	vector<vector<array<int, 2>>> g(N);
	for(int i=0; i<M; i++){
		g[U[i]].push_back({V[i], i});
	}
	if(g[0].size()>=2 and g[1].size()>=1){
		return vector<int>{g[0][0][1], g[1][0][1], g[0][1][1], g[0][0][1], g[1][0][1], g[0][1][1]};
	}else{
		return false;
	}
}
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