Submission #1064232

#	Time	Username	Problem	Language	Result	Execution time	Memory
1064232		MarwenElarbi	Thousands Islands (IOI22_islands)	C++17	Compilation error	0 ms	0 KiB

islands

#include "islands.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define ll long long
#define fi first
#define se second

std::variant<bool, std::vector<int>> find_journey(
    int N, int M, std::vector<int> U, std::vector<int> V) {
  vector<int> a;
  vector<int> b;
  for (int i = 0; i < M; ++i)
  {
    (U[i]==0 ? a : b).pb(i);
  }
  if(a.size()>=2&&b.size()>=2){
    return {a[0],b[0],a[1],b[1],b[0],a[0],b[1],a[1]};
  }
  else return false;
}

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:18:52: error: could not convert '{a.std::vector<int>::operator[](0), b.std::vector<int>::operator[](0), a.std::vector<int>::operator[](1), b.std::vector<int>::operator[](1), b.std::vector<int>::operator[](0), a.std::vector<int>::operator[](0), b.std::vector<int>::operator[](1), a.std::vector<int>::operator[](1)}' from '<brace-enclosed initializer list>' to 'std::variant<bool, std::vector<int, std::allocator<int> > >'
   18 |     return {a[0],b[0],a[1],b[1],b[0],a[0],b[1],a[1]};
      |                                                    ^
      |                                                    |
      |                                                    <brace-enclosed initializer list>