Submission #1037550

#	Time	Username	Problem	Language	Result	Execution time	Memory
1037550		sleepntsheep	Thousands Islands (IOI22_islands)	C++17	0 / 100	2 ms	604 KiB

islands

#include "islands.h"

#include <variant>
#include <vector>
using namespace std;

std::variant<bool, std::vector<int>> find_journey(
    int N, int M, std::vector<int> U, std::vector<int> V) {
    vector<int> a(N);
    for (int i = 0; i < M; ++i)
        a[U[i]]++,a[V[i]]++;

    if (N==2){
        if(a[0]%2==0&&a[1]%2==0 && min(a[0],a[1])>2)return true;
        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:9:20: warning: control reaches end of non-void function [-Wreturn-type]
    9 |     vector<int> a(N);
      |                    ^

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