Submission #797611

#	Time	Username	Problem	Language	Result	Execution time	Memory
797611		elpro123	Thousands Islands (IOI22_islands)	C++17	Compilation error	0 ms	0 KiB

islands

#include "islands.h"
#include <bits/stdc++.h>
using namespace std;

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

Compilation message (stderr)

islands.cpp:5:13: error: ambiguating new declaration of 'std::vector<int> find_journey(int, int, std::vector<int>, std::vector<int>)'
    5 | vector<int> find_journey(int N, int M,  vector<int> U,  vector<int> V){
      |             ^~~~~~~~~~~~
In file included from islands.cpp:1:
islands.h:4:38: note: old declaration 'std::variant<bool, std::vector<int, std::allocator<int> > > find_journey(int, int, std::vector<int>, std::vector<int>)'
    4 | std::variant<bool, std::vector<int>> find_journey(
      |                                      ^~~~~~~~~~~~