Submission #583276

#	Time	Username	Problem	Language	Result	Execution time	Memory
583276		alirezasamimi100	Escape Route (JOI21_escape_route)	C++17	5 / 100	9025 ms	111948 KiB

escape_route

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

#define pb push_back
#define F first
#define S second

using namespace std;
using ll = long long int;
using pll = pair<ll, ll>;
using pii = pair<int, int>;

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<pair<int, int>> adj[N];
    vector<ll> ans(Q);
    priority_queue<pair<ll, int>, vector<pair<ll, int>>, greater<pair<ll, int>>> pq;
    for(int i = 0; i < M; i++){
        adj[A[i]].pb({B[i], i});
        adj[B[i]].pb({A[i], i});
    }
    for(int i = 0; i < Q; i++){
        ll d[N];
        memset(d, 63, sizeof d);
        d[U[i]] = T[i];
        pq.push({T[i], U[i]});
        while(!pq.empty()){
            ll x = pq.top().F, y = x % S;
            int v = pq.top().S;
            pq.pop();
            if(x != d[v]) continue;
            for(auto [u, i] : adj[v]){
                ll w = L[i], c = C[i];
                if(y + w > c) w += S - y;
                if(d[u] > x + w){
                    d[u] = x + w;
                    pq.push({d[u], u});
                }
            }
        }
        ans[i] = d[V[i]] - d[U[i]];
    }
    return ans;
}

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