Submission #1039428

#	Time	Username	Problem	Language	Result	Execution time	Memory
1039428		sssamui	Crocodile's Underground City (IOI11_crocodile)	C++17	Compilation error	0 ms	0 KiB

crocodile

#include <iostream>
#include <cstdio>
#include <vector>
#include <cmath>
#include <queue>
using namespace std;

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

	int n, m, k;
	cin >> n >> m >> k;
	
	vector<int> min1(n, 1e9 + 1), min2(n, 1e9 + 1);
	vector<vector<pair<int, int>>> adj(n, vector<pair<int, int>>(0));
	while (m--)
	{
		int a, b, c;
		cin >> a >> b >> c;
		adj[a].push_back({ c, b }), adj[b].push_back({ c, a });
	}

	priority_queue<pair<int, int>> djk;
	vector<bool> prc(n, false);
	while (k--)
	{
		int stt;
		cin >> stt;
		min1[stt] = 0, min2[stt] = 0;
		djk.push({ 0, stt });
	}

	while (!djk.empty())
	{
		int d = -djk.top().first, node = djk.top().second;
		djk.pop();
		if ((d == min2[node]) && !prc[node])
		{
			prc[node] = true;
			for (pair<int, int> nxt : adj[node])
			{
				if (d + nxt.first < min1[nxt.second])
				{
					min2[nxt.second] = min1[nxt.second];
					min1[nxt.second] = d + nxt.first;
					djk.push({ -d - nxt.first, nxt.second });
				}

				else if (d + nxt.first < min2[nxt.second])
				{
					min2[nxt.second] = d + nxt.first;
					djk.push({ -d - nxt.first, nxt.second });
				}
			}
		}
	}

	cout << min2[0];
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccjBtVAr.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccotWjNr.o:crocodile.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccjBtVAr.o: in function `main':
grader.cpp:(.text.startup+0x36): undefined reference to `travel_plan(int, int, int (*) [2], int*, int, int*)'
collect2: error: ld returned 1 exit status