Submission #1255654

#	Time	Username	Problem	Language	Result	Execution time	Memory
1255654		notisora	Crocodile's Underground City (IOI11_crocodile)	C++20	Compilation error	0 ms	0 KiB

crocodile

///NotIsora
///This is my last dance
#include<bits/stdc++.h>
#define modulo 1000000007
#define fi first
#define se second
#define sq(x) (x)*(x)
#define ll long long
#define ld long double
#define el '\n'
#define pb push_back
///#define int long long

using namespace std;

const int N=1e5+2;
vector<pair<int,int>>adj[N];
int n,m,k;
bool isexit[N];
ll d[N];

priority_queue<pair<ll,int>,vector<pair<ll,int>>,greater<pair<ll,int>>>pq;

signed main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    //freopen("i.INP","r",stdin);
    cin>>n>>m>>k;
    for(int i=1;i<=m;i++){
        int a,b,w;
        cin>>a>>b>>w;
        adj[a].pb({b,w});
        adj[b].pb({a,w});
    }

    for(int i=1;i<=k;i++){
        int s;
        cin>>s;
        isexit[s]=1;
    }

    for(int i=0;i<n;i++) d[i]=1e15;
    for(int s=0;s<n;s++){
        sort(adj[s].begin(),adj[s].end(),[&](pair<int,int>&A,pair<int,int>&B){
            if (isexit[A.fi] != isexit[B.fi])
                return isexit[A.fi] > isexit[B.fi];
            return A.se < B.se;
        });
//        cout<<s<<": ";
//        for(pair<int,int>&pr:adj[s]){
//            cout<<pr.fi<<" ";
//        }
//        cout<<el;
    }

    pq.push({0LL,0});
    d[0]=0;

    while(!pq.empty()){
        ll dis=pq.top().fi;
        int s=pq.top().se;
        pq.pop();
        if (dis>d[s]) continue;
//        cout<<el;
        for(int i=1;i<(int)adj[s].size();i++){
            pair<int,int>&pr=adj[s][i];
            int u=pr.fi;
            int w=pr.se;
            if (d[u]>dis+(ll)w){
                d[u]=dis+(ll)w;
                pq.push({d[u],u});
            }
        }
    }
    ll ans=1e15;
    for(int i=0;i<n;i++){
        if (isexit[i]){
//            cout<<i<<" "<<d[i]<<el;
            ans=min(ans,d[i]);
        }
    }
    cout<<ans;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccLkMc0u.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cch14ncN.o:crocodile.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccLkMc0u.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