Submission #973548

#	Time	Username	Problem	Language	Result	Execution time	Memory
973548		SuPythony	Cyberland (APIO23_cyberland)	C++17	Compilation error	0 ms	0 KiB

cyberland

//#include "cyberland.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
 
vector<vector<pair<int,int>>> al;
vector<int> nodes;
 
void dfs(int u, int p, int H, vector<int> &a) {
    if (u==H) return;
    if (a[u]==0) nodes.push_back(u);
    for (auto v: al[u]) {
        if (v.first==p) continue;
        dfs(v.first,u,H,a);
    }
}
 
double solve(int N, int M, int K, int H, vector<int> x, vector<int>
y, vector<int> c, vector<int> a) {
    al.assign(N+1,vector<pair<int,int>>());
    nodes.clear();
    for (int i=0; i<M; i++) {
        al[x[i]].push_back({y[i],c[i]});
        al[y[i]].push_back({x[i],c[i]});
    }
    dfs(0,-1,H,a);
    priority_queue<pair<int,int>,vector<pair<int,int>>,greater<pair<int,int>>> q;
    vector<int> dist(N+1,1e9);
    dist[N]=0;
    q.push({0,N});
    al[N].push_back({0,0});
    for (int i: nodes) {
        al[N].push_back({i,0});
    }
    vector<int> done(N+1,0);
    while (!q.empty()) {
        int u=q.top().second; q.pop();
        for (auto v: al[u]) {
            if (done[v.first]) continue;
            if (dist[u]+v.second<dist[v.first]) {
                dist[v.first]=dist[u]+v.second;
                q.push({dist[v.first],v.first});
            }
        }
        done[u]=true;
    }
    return (double)dist[H];
}

int main() {
    vector<int> x={0,1,2}, y={1,2,3}, c={5,7,8}, a={1,1,0,1};
    cout<<solve(4,3,30,3,x,y,c,a);
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccIiFE2Z.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccudVCn2.o:cyberland.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status