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Submission #832806

# Submission time Handle Problem Language Result Execution time Memory
832806 2023-08-21T15:45:50 Z jlallas384 Crocodile's Underground City (IOI11_crocodile) C++17
89 / 100
 409 ms 49688 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[]){
    priority_queue<pair<ll,int>> pq;
    vector<vector<ll>> dist(n);
    for(int i = 0; i < k; i++){
        pq.emplace(0, p[i]);
        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]);
    }
    while(pq.size()){
        auto [d, v] = pq.top(); pq.pop();
        if(-d > dist[v].back()) continue;
        if(v == 0) return -d;
        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);
                }
            }
        }
    }
}

Compilation message

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:7:34: warning: control reaches end of non-void function [-Wreturn-type]
    7 |     priority_queue<pair<ll,int>> pq;
      |                                  ^~

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 444 KB Output is correct
6 Correct 1 ms 312 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 444 KB Output is correct
6 Correct 1 ms 312 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 2 ms 596 KB Output is correct
10 Correct 1 ms 312 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 3 ms 832 KB Output is correct
13 Correct 3 ms 816 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 448 KB Output is correct

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 444 KB Output is correct
6 Correct 1 ms 312 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 2 ms 596 KB Output is correct
10 Correct 1 ms 312 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 3 ms 832 KB Output is correct
13 Correct 3 ms 816 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 448 KB Output is correct
16 Correct 317 ms 41580 KB Output is correct
17 Correct 63 ms 15252 KB Output is correct
18 Correct 68 ms 14808 KB Output is correct
19 Correct 409 ms 49688 KB Output is correct
20 Correct 211 ms 34252 KB Output is correct
21 Correct 30 ms 6248 KB Output is correct
22 Incorrect 232 ms 32176 KB Output isn't correct
23 Halted 0 ms 0 KB -