Submission #709475

#	Time	Username	Problem	Language	Result	Execution time	Memory
709475		Jarif_Rahman	Escape Route (JOI21_escape_route)	C++17	5 / 100	9026 ms	132016 KiB

escape_route

#include "escape_route.h"
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;

const ll inf = 5e17;

vector<ll> calculate_necessary_time(int n, int m, ll S, int q, vector<int> A, vector<int> B,
    vector<ll> L, vector<ll> C, vector<int> U, vector<int> V, vector<ll> T){

    vector<ll> ans(q);
    vector<vector<tuple<int, ll, ll>>> v(n);
    
    for(int i = 0; i < m; i++){
        v[A[i]].pb({B[i], L[i], C[i]});
        v[B[i]].pb({A[i], L[i], C[i]});
    }
    
    for(int qq = 0; qq < q; qq++){
        vector<ll> dis(n, inf);
        vector<bool> bl(n, 0);
        priority_queue<pair<ll, int>> pq;

        dis[U[qq]] = T[qq];
        pq.push({-T[qq], U[qq]});

        while(!pq.empty()){
            int nd = pq.top().sc; pq.pop();
            if(bl[nd]) continue;
            bl[nd] = 1;

            for(auto [x, l, c]: v[nd]) if((dis[nd]%S+l<=c ? dis[nd]+l:((dis[nd]+S-1)/S)*S+l) < dis[x]){
                dis[x] = (dis[nd]%S+l<=c ? dis[nd]+l:((dis[nd]+S-1)/S)*S+l);
                pq.push({-dis[x], x});
            }
        }

        ans[qq] = dis[V[qq]]-T[qq];
    }

    return ans;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 20
• Subtask 3: 0 / 10
• Subtask 4: 0 / 35
• Subtask 5: 0 / 30