Submission #769458

#	Time	Username	Problem	Language	Result	Execution time	Memory
769458		HD1	Cyberland (APIO23_cyberland)	C++17	0 / 100	144 ms	9940 KiB

cyberland

//we are all lost trying to be someone.
#include <bits/stdc++.h>
#include "cyberland.h"
#define fastio ios_base::sync_with_stdio(0); cin.tie(0);
#define sz(x) ll(x.size())
#define reve(x) reverse(x.begin(),x.end())
#define ff first
#define ss second
using namespace std;
typedef int ll;
typedef long double ld;
typedef pair<double,ll> ii;
const ll MAX=(1e5+10)*2;
vector<ii> gfo[MAX];
bool vst[MAX];
double dist[MAX];
void dikstra(ll ini){
    set<ii> q;
    q.insert({0,ini});
    vst[ini]=true;
    dist[ini]=0.0;
    while(sz(q)){
        ii x=*q.begin();
        q.erase(q.begin());
        ll u=x.ss;
        ll dist_u=x.ff;
        if(dist[u]!=dist_u)continue;
        for(ii y:gfo[u]){
            ll v=y.ss;
            ll w=y.ff;
            if(dist[v]>dist[u]+w){
                dist[v]=dist[u]+w;
                q.insert({dist[v],v});
            }
        }
    }
    return;
}
double solve(ll N, ll M, ll K,ll H, vector<ll> x, vector<ll> y, vector<ll> c, vector<ll> arr){
    cout<<fixed<<setprecision(10);
    for(ll i=0; i<=N; i++){
        dist[i]=10000000000.0;
    }
    for(ll i=0; i<M; i++){
        gfo[x[i]].push_back({c[i],y[i]});
        gfo[y[i]].push_back({c[i],x[i]});
    }
    dikstra(0);
    return dist[H];
}
/*
int main(){
    ll N,M,K,H;
    vector<ll> x,y,c,arr;
    cin>>N>>M>>K>>H;
    for(ll j=0; j<3; j++) for(ll i=0; i<M; i++){
        ll a;
        cin>>a;
        if(j==0)x.push_back(a);
        else if(j==1)y.push_back(a);
        else c.push_back(a);
    }
    for(ll i=0; i<N; i++){
        ll a;
        cin>>a;
        arr.push_back(a);
    }
    cout<<solve(N,M,K,H,x,y,c,arr)<<'\n';
    return 0;
}*/

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 13
• Subtask 4: 0 / 19
• Subtask 5: 0 / 7
• Subtask 6: 0 / 16
• Subtask 7: 0 / 29
• Subtask 8: 0 / 3