Submission #667070

#	Time	Username	Problem	Language	Result	Execution time	Memory
667070		Stavab	Thousands Islands (IOI22_islands)	C++17	5 / 100	32 ms	3404 KiB

islands

#include "islands.h"

#include <variant>
#include <vector>

std::variant<bool, std::vector<int>> find_journey(int N, int M, std::vector<int> U, std::vector<int> V)
{
  if(N == 2)
  {
    std::vector<int> v = {};
    int c1 = -1, c2 = -1, c3 = -1;
    
    for(int i = 0; i < (int)U.size(); i++)
    {
        if(U[i] == 0 && c1 == -1)
            c1 = i;
        else if(U[i] == 0)
            c2 = i;
        else
            c3 = i;
    }

    if(c1 == -1 || c2 == -1 || c3 == -1)
        return false;
    else
    {
        v.push_back(c1);
        v.push_back(c3);
        v.push_back(c2);
        v.push_back(c1);
        v.push_back(c3);
        v.push_back(c2);
    }

    std::variant<bool, std::vector<int>> var;
    var = v;
    return var;
  }

  return false;
}

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