Submission #1058178

#	Time	Username	Problem	Language	Result	Execution time	Memory
1058178		tolbi	Thousands Islands (IOI22_islands)	C++17	0 / 100	1 ms	348 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) {
	//N=2
	vector<int> git;
	vector<int> don;
	for (int i = 0; i < U.size(); i++){
		if (U[i]==0) git.push_back(i);
	}
	if (git.size()==2 && don.size()==1){
		return vector<int>{git[0],don[0],git[1],git[0],don[0],git[1]};
	}
	if (git.size()<2 || don.size()<2) return false;
	return vector<int>{git[0],don[0],git[1],don[1],don[0],git[0],don[1],git[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:9:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |  for (int i = 0; i < U.size(); i++){
      |                  ~~^~~~~~~~~~

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