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Submission #832851

# Submission time Handle Problem Language Result Execution time Memory
832851 2023-08-21T15:58:03 Z jlallas384 Crocodile's Underground City (IOI11_crocodile) C++17
89 / 100
 450 ms 49900 KB 
#include <bits/stdc++.h>
#include "crocodile.h"
using namespace std;
using ll = long long;

int travel_plan(int n, int m, int r[][2], int L[], int k, int p[]){
    vector<int> lst(n);
    priority_queue<pair<ll,int>> pq;
    vector<vector<ll>> dist(n);
    for(int i = 0; i < k; i++){
        pq.emplace(0, p[i]);
        lst[p[i]] = 1;
        dist[p[i]].push_back(0);
        dist[p[i]].push_back(0);
    }
    vector<vector<pair<int,int>>> g(n);
    for(int i = 0; i < m; i++){
        g[r[i][0]].emplace_back(r[i][1], L[i]);
        g[r[i][1]].emplace_back(r[i][0], L[i]);
    }
    ll ans = 1e18;
    while(pq.size()){
        auto [d, v] = pq.top(); pq.pop();
        if(-d > dist[v].back()) continue;
        if(v == 0){
            ans = min(ans, -d);
            continue;
        }
        for(auto [u, w]: g[v]){
            if(dist[u].empty()){
                dist[u].push_back(-d + w);
            }else if(dist[u].size() == 1){
                dist[u].push_back(-d + w);
                sort(dist[u].begin(), dist[u].end());
                pq.emplace(-dist[u][1], u);
            }else{
                if(-d + w < dist[u][1]){
                    dist[u].push_back(-d + w);
                    sort(dist[u].begin(), dist[u].end());
                    dist[u].pop_back();
                    pq.emplace(-dist[u][1], u);
                }
            }
        }
    }
    return ans;
}

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 340 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 3 ms 724 KB Output is correct
13 Correct 2 ms 724 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 3 ms 724 KB Output is correct
13 Correct 2 ms 724 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 338 ms 41564 KB Output is correct
17 Correct 67 ms 15512 KB Output is correct
18 Correct 78 ms 16496 KB Output is correct
19 Correct 450 ms 49900 KB Output is correct
20 Correct 211 ms 34256 KB Output is correct
21 Correct 39 ms 6224 KB Output is correct
22 Incorrect 238 ms 32044 KB Output isn't correct
23 Halted 0 ms 0 KB -