Submission #1315620

#	Time	Username	Problem	Language	Result	Execution time	Memory
1315620		PlayVoltz	Thousands Islands (IOI22_islands)	C++20	3.50 / 100	19 ms	4488 KiB

islands

#include "islands.h"
#include <bits/stdc++.h>
using namespace std;

#define pb push_back
#define mp make_pair
#define pii pair<int, int>
#define fi first
#define se second

variant<bool, vector<int> > find_journey(int n, int m, vector<int> u, vector<int> v){
	if (m<3)return false;
	vector<int> a, b;
	int c=0;
	for (int i=0; i<m; ++i){
		if (!u[i])++c;
		if (v[i])a.pb(i);
		else b.pb(i);
	}
	if (a.empty()||b.empty())return false;
	if (c>=2)return vector<int>{};
	return false;
}

• Subtask 1: 1.75 / 5
• Subtask 2: 1.75 / 5
• Subtask 3: 0 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 45