Submission #748307

#	Time	Username	Problem	Language	Result	Execution time	Memory
748307		Toxtaq	Voting Cities (NOI22_votingcity)	C++17	20 / 100	62 ms	860 KiB

Main

#include<bits/stdc++.h>
using namespace std;
vector<vector<pair<int, int>>>G;
vector<int>cities;
int main()
{
    int n, m, k;
    cin >> n >> m >> k;
    G.resize(n + 1);
    for(int i = 0;i < k;++i){
        int a;
        cin >> a;
        a++;
        cities.push_back(a);
    }
    for(int i = 0;i < m;++i){
        int u, v, c;
        cin >> u >> v >> c;
        u++;
        v++;
        G[u].push_back({v, c});
    }
    int q;
    cin >> q;
    while(q--){
        int s, p1, p2, p3, p4, p5;
        cin >> s >> p1 >> p2 >> p3 >> p4 >> p5;
        s++;
        long long mn = 1e18;
        priority_queue<pair<long long, int>>pq;
        vector<long long>dist(n + 1, 1e18); /// from s to other nodes
        vector<bool>check(n + 1);
        dist[s] = 0;
        pq.push({0, s});
        while(!pq.empty()){
            int cur = pq.top().second;
            pq.pop();
            if(check[cur])continue;
            check[cur] = 1;
            for(pair<long long, int>tempo : G[cur]){
                long long v = tempo.first, w = tempo.second;
                if(dist[v] > dist[cur] + w){
                    dist[v] = dist[cur] + w;
                    pq.push({-dist[v], v});
                }
            }
        }
        for(int i : cities){
            mn = min(mn, dist[i]);
        }
        if(mn == 1e18){
            cout << -1 << '\n';
        }
        else cout << mn << '\n';
    }
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 10
• Subtask 7: 0 / 15
• Subtask 8: 0 / 50