Submission #934399

#	Time	Username	Problem	Language	Result	Execution time	Memory
934399		bmh123456789asdf	Crocodile's Underground City (IOI11_crocodile)	C++17	Compilation error	0 ms	0 KiB

crocodile

#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N = 2e6 + 1;
int par[N];
vector<pair<int,int>> adj[N];
set<int> chamber;
int Exit[N], dp[N];
int n, m, k;


void dfs(int u,int par)
{
    set<int> ans;
    dp[u] = 0;
    if(chamber.find(u) != chamber.end())  Exit[u] = 1;
    else{
        for(auto v : adj[u])
        {
            if(v.first == par) continue;
            dfs(v.first, u);
            Exit[u] = max(Exit[u], Exit[v.first]);
            if(Exit[v.first]) ans.insert(dp[v.first] + v.second);
        }
       auto itr = ans.begin();
       itr++;
       dp[u] = *itr;
    }
}

int32_t main()
{
//    freopen("test.inp", "r" ,stdin);
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);


    cin >> n >> m >> k;
    for(int i = 1; i <= m; i++)
    {
        int u, v, l;
        cin >> u >> v >> l;
        adj[u].push_back({v, l});
        adj[v].push_back({u, l});
    }
    for(int i = 1; i <= k; i++)
    {
        int u;
        cin >> u;
        chamber.insert(u);
    }
    dfs(0, -1);
    cout<<dp[0];

}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccLhZ0sr.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc84YyOs.o:crocodile.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccLhZ0sr.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