Submission #814487

#	Time	Username	Problem	Language	Result	Execution time	Memory
814487		LIF	Thousands Islands (IOI22_islands)	C++17	3.50 / 100	28 ms	4380 KiB

islands

#include "islands.h"

#include <variant>
#include <vector>
int ind[300005];
std::variant<bool, std::vector<int>> find_journey(
    int N, int M, std::vector<int> U, std::vector<int> V) {

	if(N == 2)
  {
      for(int i=0;i<M;i++)
      {
        ind[U[i]]++;
      }
      if(ind[0] >= 2 && ind[1] >= 1)return true;
      return false;
  }
  
    	/*
  if (N == 4) {
    return std::vector<int>({0, 1, 2, 4, 0, 3, 2, 1, 4, 3});
  }
  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:24:1: warning: control reaches end of non-void function [-Wreturn-type]
   24 | }
      | ^

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