Submission #89993

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
89993	2018-12-19T14:21:42 Z	thebes	Ferries (NOI13_ferries)	C++14	Compilation error	0 ms	0 KB

ferries

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

const int MN = 1e5+5;
int i, x, y, dist[MN], idx[MN];
vector<int> adj[MN], w[MN];

typedef pair<int,int> pii;
struct pq{bool operator()(const pii&i,const pii&j){return i.second>j.second;}};
priority_queue<pii,vector<pii>,pq> q;

int ferries(int N,int M,int *A,int *B,int *C){
    for(i=0;i<M;i++){
        adj[B[i]].push_back(A[i]);
        w[A[i]].push_back(C[i]);
    }
    for(i=1;i<=N;i++) sort(w[i].begin(),w[i].end(),[](int i,int j){return i>j;});
    memset(dist,-1,sizeof(dist));
    q.push({N,0});
    while(q.size()){
        auto v=q.top(); q.pop();
        if(dist[v.first]!=-1) continue;
        else dist[v.first]=v.second;
        for(auto e : adj[v.first]){
            if(dist[e]==-1){
                int W = w[e][idx[e]]; idx[e]++;
                q.push({e, W+v.second});
            }
        }
    }
    return dist[1];
}

Compilation message

/usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/crt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status