Submission #1247522

#	Time	Username	Problem	Language	Result	Execution time	Memory
1247522		erering	Thousands Islands (IOI22_islands)	C++20	5 / 100	18 ms	3396 KiB

islands

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

variant<bool, vector<int>> find_journey(int N, int M, vector<int> U, vector<int> V) {
    pair<int,int> p={-1,-1};
    int idx=-1;
    for(int i=0;i<M;i++){
        if(U[i]==0 && V[i]==1){
            if(p.first==-1)p.first=i;
            else p.second=i;
        }
        if(U[i]==1 && V[i]==0)idx=i;
    }
    if(p.second==-1 || idx==-1)return false;
    return vector<int>{p.first,idx,p.second,p.first,idx,p.second};
}

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