Submission #837239

#	Time	Username	Problem	Language	Result	Execution time	Memory
837239		Sohsoh84	Thousands Islands (IOI22_islands)	C++17	Compilation error	0 ms	0 KiB

islands

#include "islands.h"
#include <bits/stdc++.h>

using namespace std;

const int MAXN = 400 + 10;

int deg[MAXN], n, m, W[MAXN][MAXN];
vector<int> f[MAXN];

variant<bool, vector<int>> find_journey(int n_, int m_, vector<int> U_, vector<int> V_) {
	n = n_;
	m = m_;
	for (int i = 0; i < m; i++) {
		deg[U_[i]]++, f[U_[i]].push_back(i);
		W[U_[i]][V_[i]] = i;
	}

	if (n == 2) {
		if (deg[0] >= 2 && deg[1] >= 1) return vector<int>({f[0][0], f[1][0], f[0][1], f[0][0], f[1][0], f[0][1]});
		return false;
	}

	return {W[0][1], W[1][2], W[2][0], W[0][2], W[2][1], W[1][0], W[0][1], W[1][2], W[2][0], W[0][2], W[2][1], W[1][0]};

}

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:24:116: error: could not convert '{W[0][1], W[1][2], W[2][0], W[0][2], W[2][1], W[1][0], W[0][1], W[1][2], W[2][0], W[0][2], W[2][1], W[1][0]}' from '<brace-enclosed initializer list>' to 'std::variant<bool, std::vector<int, std::allocator<int> > >'
   24 |  return {W[0][1], W[1][2], W[2][0], W[0][2], W[2][1], W[1][0], W[0][1], W[1][2], W[2][0], W[0][2], W[2][1], W[1][0]};
      |                                                                                                                    ^
      |                                                                                                                    |
      |                                                                                                                    <brace-enclosed initializer list>