Submission #917796

#	Time	Username	Problem	Language	Result	Execution time	Memory
917796		XXBabaProBerkay	Cyberland (APIO23_cyberland)	C++17	Compilation error	0 ms	0 KiB

cyberland

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

#define F first
#define S second

using ll = long long;

double solve(int N, int M, int K, int H, vector<int> x, vector<int> y, vector<int> c, vector<int> arr)
{
	vector<vector<pair<int, ll>>> adj(N);
	for (int i = 0; i < M; i++)
	{
		adj[x[i]].emplace_back(y[i], c[i]);
		adj[y[i]].emplace_back(x[i], c[i]);
	}

	priority_queue<pair<ll, int>, vector<pair<ll, int>>, greater<pair<ll, int>>> PQ;
	vector<ll> dist(N, 1e18);
	dist[0] = 0.0;
	PQ.emplace(0.0, 0);
	while (!PQ.empty())
	{
		auto [d, u] = PQ.top();
		PQ.pop();

		if (d != dist[u])
			continue;

		if (arr[u] == 0)
			dist[u] = 0;

		for (pair<int, ll> i : adj[u])
		{
			auto [v, w] = i;
			if (dist[v] > dist[u] + w)
				PQ.emplace(dist[v] = dist[u] + w, v);
		}
	}

	return dist[H] == 1e18 ? -1.0 : double(dist[H]);
}

int main()
{
	ios::sync_with_stdio(false);
	cin.tie(NULL);

	int N, M, K, H;
	cin >> N >> M >> K >> H;
	vector<int> x(M), y(M), c(M), arr(N);

	for (int i = 0; i < N; i++)
		cin >> arr[i];

	for (int i = 0; i < M; i++)
		cin >> x[i] >> y[i] >> c[i];

	cout << solve(N, M, K, H, x, y, c, arr) << '\n';
}

Compilation message (stderr)

/usr/bin/ld: /tmp/cc9Ihszv.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc40vxOv.o:cyberland.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status