Submission #1258956

#	Time	Username	Problem	Language	Result	Execution time	Memory
1258956		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;
ll d[2][N];

struct State{
    int s;
    ll dis;
    bool operator < (const State&other) const{
        return dis>other.dis;
    }
};

priority_queue<State>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=0;i<n;i++){
        d[0][i]=d[1][i]=1e15;
    }

    for(int i=1;i<=k;i++){
        int s;
        cin>>s;
        pq.push({s,0LL});
        d[0][s]=0;
        d[1][s]=0;
    }


    while(!pq.empty()){
        ll dis=pq.top().dis;
        int s=pq.top().s;
        pq.pop();
        if (dis>d[1][s]) continue;
//        cout<<el;
        for(int i=0;i<(int)adj[s].size();i++){
            pair<int,int>&pr=adj[s][i];
            int u=pr.fi;
            int w=pr.se;
//            if (u==2){
//                cout<<d[0][u]<<" "<<d[1][u]<<" "<<s<<":"<<dis+w<<el;
//            }
            if (d[0][u]>dis+(ll)w){
                if (d[1][u]>d[0][u]) pq.push({u,d[0][u]});
                d[1][u]=d[0][u];
                d[0][u]=(dis+(ll)w);
            }
            else if (d[1][u]>dis+(ll)w){
                d[1][u]=(dis+(ll)w);
                pq.push({u,dis+(ll)w});
            }
        }
    }

    cout<<d[1][0];
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccsXxXrT.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccjB2pNU.o:crocodile.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccsXxXrT.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