Submission #1012707

#	Time	Username	Problem	Language	Result	Execution time	Memory
1012707		bachhoangxuan	Thousands Islands (IOI22_islands)	C++17	Compilation error	0 ms	0 KiB

islands

#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<int>> e(N);
    for(int i=0;i<M;i++) e[U[i]].push_back(i);
    if((int)e[0].size()<2 || (int)e[1].size()<1) return false;
    return {e[0][0],e[1][0],e[0][1],e[0][0],e[1][0],e[0][1]};
}

Compilation message (stderr)

islands.cpp: In function 'std::variant<bool, std::vector<int, std::allocator<int> > > find_journey(int, int, std::vector<int>, std::vector<int>)':
islands.cpp:10:60: error: could not convert '{(& e.std::vector<std::vector<int> >::operator[](0))->std::vector<int>::operator[](0), (& e.std::vector<std::vector<int> >::operator[](1))->std::vector<int>::operator[](0), (& e.std::vector<std::vector<int> >::operator[](0))->std::vector<int>::operator[](1), (& e.std::vector<std::vector<int> >::operator[](0))->std::vector<int>::operator[](0), (& e.std::vector<std::vector<int> >::operator[](1))->std::vector<int>::operator[](0), (& e.std::vector<std::vector<int> >::operator[](0))->std::vector<int>::operator[](1)}' from '<brace-enclosed initializer list>' to 'std::variant<bool, std::vector<int, std::allocator<int> > >'
   10 |     return {e[0][0],e[1][0],e[0][1],e[0][0],e[1][0],e[0][1]};
      |                                                            ^
      |                                                            |
      |                                                            <brace-enclosed initializer list>