Submission #977343

#	Time	Username	Problem	Language	Result	Execution time	Memory
977343		Nexus	Cyberland (APIO23_cyberland)	C++17	Compilation error	0 ms	0 KiB

cyberland

#define ll long long
#include <bits/stdc++.h>
#include "cyberland.h"

using namespace std;

const ll N=1e5+9;

pair<ll,ll>p;
ll vis[N],o[N],g;
vector<pair<ll,ll>>v[N];
priority_queue<pair<ll,ll>>q;

void dfs(ll node)
{
    if(vis[i])return;
    vis[node]=1;
    if(!arr[i])o[i]=1;
    for(auto i:v[node])dfs(i);
}

double solve(int n, int M, int K, int H, vector<int> x, vector<int> y, vector<int> c, vector<int> arr) {

    vector<ll>dis(n,1e18);
    double ans=-1;
    for(ll i=0;i<n;++i)
    {
        o[i]=0;
        vis[i]=0,v[i].clear();
    }


    dfs(0);

    for(ll i=0;i<n;++i)vis[i]=0;

    for(ll i=0;i<M;++i)
    {
        v[x[i]].push_back({c[i],y[i]});
        v[y[i]].push_back({c[i],x[i]});
    }

    dis[H]=0;

    q.push({H,0});

    while(q.size())
    {
        p=q.top();
        g=p.second;
        q.pop();

        if(vis[g])continue;
        vis[g]=1;

        if(o[g])dis[0]=min(dis[0],dis[g]);

        for(auto i:v[g])
        {
            if(dis[g]+i.first<dis[i.second])
            {
                dis[i.second]=dis[g]+i.first;
                q.push({-dis[i.second],i.second});
            }
        }
    }

    if(dis[0]<1e18)ans=dis[0];

    return ans;
}

Compilation message (stderr)

cyberland.cpp: In function 'void dfs(long long int)':
cyberland.cpp:16:12: error: 'i' was not declared in this scope
   16 |     if(vis[i])return;
      |            ^
cyberland.cpp:18:9: error: 'arr' was not declared in this scope
   18 |     if(!arr[i])o[i]=1;
      |         ^~~
cyberland.cpp:18:13: error: 'i' was not declared in this scope
   18 |     if(!arr[i])o[i]=1;
      |             ^
cyberland.cpp:19:28: error: cannot convert 'std::pair<long long int, long long int>' to 'long long int'
   19 |     for(auto i:v[node])dfs(i);
      |                            ^
      |                            |
      |                            std::pair<long long int, long long int>
cyberland.cpp:14:13: note:   initializing argument 1 of 'void dfs(long long int)'
   14 | void dfs(ll node)
      |             ^