Submission #750483

#	Time	Username	Problem	Language	Result	Execution time	Memory
750483		Gurban	Cyberland (APIO23_cyberland)	C++17	15 / 100	40 ms	7588 KiB

cyberland

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

using namespace std;

using ll = long long;
using ld = long double;

const ll inf = 1e18;
const int maxn=1e5+5;
// const double eps = 0.00000001;
int D[maxn];
vector<pair<int,ll>>E[maxn];

double solve(int N, int M, int K, int H, vector<int> x, vector<int> y, vector<int> c, vector<int> arr) {
    for(int i = 0;i < N;i++) E[i].clear();
    for(int i = 0;i < M;i++){
        E[x[i]].push_back({y[i],c[i]});
        E[y[i]].push_back({x[i],c[i]});
    }
    

    arr[0] = 0;

    ll ans = inf;
    
    priority_queue<pair<ll,int>>q;
    vector<ll>dis(N,inf);
    vector<bool>vis(N,0);

    dis[H] = 0;
    q.push({0,H});
    while(!q.empty()){
        int x = q.top().second;
        q.pop();
        if(arr[x] == 0) return dis[x];
        if(vis[x]) continue;
        vis[x] = 1;
        for(auto i : E[x]){
            if(dis[i.first] > dis[x] + i.second){
                dis[i.first] = dis[x] + i.second;
                q.push({-dis[i.first],i.first});
            }
        }
    }

    // ans = dis[0];
    // for(int i = 0;i < N;i++) if(arr[i] == 0) ans = min(ans,dis[i]);

    return -1;
}

Compilation message (stderr)

cyberland.cpp: In function 'double solve(int, int, int, int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
cyberland.cpp:25:8: warning: unused variable 'ans' [-Wunused-variable]
   25 |     ll ans = inf;
      |        ^~~

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