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Submission #1072433

# Submission time Handle Problem Language Result Execution time Memory
1072433 2024-08-23T19:00:44 Z PagodePaiva Race (IOI11_race) C++17
100 / 100
 317 ms 89012 KB 
#include "race.h"
#include<bits/stdc++.h>

using namespace std;

const int N = 200010;
map <int, int> m[N];
int shift[N];
int k;
vector <pair <int, int>> g[N];
int res[N];
int h[N];

void prep(int v, int p){
  for(auto [x, _] : g[v]){
    if(x == p) continue;
    h[x] = h[v]+1;
    prep(x, v);
  }
  return;
}

void dfs(int v, int p){
  m[v][0] = h[v];
  for(auto [x, w] : g[v]){
    if(x == p) continue;
    dfs(x, v);
    shift[x] += w;
    if(m[x].size() > m[v].size()){
      swap(m[x], m[v]);
      swap(shift[x], shift[v]);
    }
    for(auto [vvalor, altura] : m[x]){
      int valor = vvalor;
      valor = valor+shift[x];
      valor = k-valor;
      valor = valor-shift[v];
      if(m[v].find(valor) != m[v].end()){
        int altura2 = m[v][valor];
        // cout << altura << ' ' << altura2 << ' ' << v << '\n';
        res[v] = min(res[v], altura+altura2-2*h[v]);
      }
    }
    for(auto [vvalor, altura] : m[x]){
      int valor = vvalor;
      valor = valor+shift[x]-shift[v];
      if(m[v].find(valor) != m[v].end()) m[v][valor] = min(m[v][valor], altura);
      else m[v][valor] = altura;
    }
  }
  return;
}

int best_path(int n, int K, int h[][2], int l[]){
  k = K;
  for(int i = 0;i < n-1;i++){
    int a = h[i][0], b = h[i][1];
    g[a].push_back({b, l[i]});
    g[b].push_back({a, l[i]});
  }
  for(int i = 0;i < n;i++) res[i] = 1e8;
  prep(0,0);
  dfs(0,0);
  int resposta = 1e8;
  for(int i= 0;i < n;i++) {
    //cout << res[i] << ' ';
    resposta = min(resposta, res[i]);
  }
  return (resposta == 1e8 ? -1 : resposta);
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 20312 KB Output is correct
2 Correct 3 ms 20316 KB Output is correct
3 Correct 3 ms 20316 KB Output is correct
4 Correct 3 ms 20316 KB Output is correct
5 Correct 3 ms 20312 KB Output is correct
6 Correct 3 ms 20524 KB Output is correct
7 Correct 3 ms 20316 KB Output is correct
8 Correct 4 ms 20316 KB Output is correct
9 Correct 4 ms 20504 KB Output is correct
10 Correct 3 ms 20316 KB Output is correct
11 Correct 3 ms 20520 KB Output is correct
12 Correct 3 ms 20552 KB Output is correct
13 Correct 3 ms 20312 KB Output is correct
14 Correct 3 ms 20316 KB Output is correct
15 Correct 3 ms 20316 KB Output is correct
16 Correct 4 ms 20312 KB Output is correct
17 Correct 3 ms 20316 KB Output is correct
18 Correct 4 ms 20312 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 20312 KB Output is correct
2 Correct 3 ms 20316 KB Output is correct
3 Correct 3 ms 20316 KB Output is correct
4 Correct 3 ms 20316 KB Output is correct
5 Correct 3 ms 20312 KB Output is correct
6 Correct 3 ms 20524 KB Output is correct
7 Correct 3 ms 20316 KB Output is correct
8 Correct 4 ms 20316 KB Output is correct
9 Correct 4 ms 20504 KB Output is correct
10 Correct 3 ms 20316 KB Output is correct
11 Correct 3 ms 20520 KB Output is correct
12 Correct 3 ms 20552 KB Output is correct
13 Correct 3 ms 20312 KB Output is correct
14 Correct 3 ms 20316 KB Output is correct
15 Correct 3 ms 20316 KB Output is correct
16 Correct 4 ms 20312 KB Output is correct
17 Correct 3 ms 20316 KB Output is correct
18 Correct 4 ms 20312 KB Output is correct
19 Correct 3 ms 20316 KB Output is correct
20 Correct 4 ms 20316 KB Output is correct
21 Correct 4 ms 20572 KB Output is correct
22 Correct 4 ms 20572 KB Output is correct
23 Correct 4 ms 20568 KB Output is correct
24 Correct 5 ms 20572 KB Output is correct
25 Correct 4 ms 20572 KB Output is correct
26 Correct 5 ms 20572 KB Output is correct
27 Correct 3 ms 20568 KB Output is correct
28 Correct 4 ms 20572 KB Output is correct
29 Correct 4 ms 20572 KB Output is correct
30 Correct 4 ms 20764 KB Output is correct
31 Correct 4 ms 20572 KB Output is correct
32 Correct 4 ms 20592 KB Output is correct
33 Correct 5 ms 20572 KB Output is correct
34 Correct 3 ms 20572 KB Output is correct
35 Correct 4 ms 20572 KB Output is correct
36 Correct 5 ms 20572 KB Output is correct
37 Correct 3 ms 20572 KB Output is correct
38 Correct 4 ms 20572 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 20312 KB Output is correct
2 Correct 3 ms 20316 KB Output is correct
3 Correct 3 ms 20316 KB Output is correct
4 Correct 3 ms 20316 KB Output is correct
5 Correct 3 ms 20312 KB Output is correct
6 Correct 3 ms 20524 KB Output is correct
7 Correct 3 ms 20316 KB Output is correct
8 Correct 4 ms 20316 KB Output is correct
9 Correct 4 ms 20504 KB Output is correct
10 Correct 3 ms 20316 KB Output is correct
11 Correct 3 ms 20520 KB Output is correct
12 Correct 3 ms 20552 KB Output is correct
13 Correct 3 ms 20312 KB Output is correct
14 Correct 3 ms 20316 KB Output is correct
15 Correct 3 ms 20316 KB Output is correct
16 Correct 4 ms 20312 KB Output is correct
17 Correct 3 ms 20316 KB Output is correct
18 Correct 4 ms 20312 KB Output is correct
19 Correct 73 ms 39288 KB Output is correct
20 Correct 87 ms 39360 KB Output is correct
21 Correct 80 ms 39112 KB Output is correct
22 Correct 84 ms 38996 KB Output is correct
23 Correct 111 ms 48468 KB Output is correct
24 Correct 84 ms 41556 KB Output is correct
25 Correct 60 ms 41488 KB Output is correct
26 Correct 42 ms 49084 KB Output is correct
27 Correct 129 ms 47552 KB Output is correct
28 Correct 194 ms 85072 KB Output is correct
29 Correct 202 ms 83348 KB Output is correct
30 Correct 128 ms 47536 KB Output is correct
31 Correct 126 ms 47404 KB Output is correct
32 Correct 154 ms 47536 KB Output is correct
33 Correct 195 ms 51024 KB Output is correct
34 Correct 247 ms 76004 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 20312 KB Output is correct
2 Correct 3 ms 20316 KB Output is correct
3 Correct 3 ms 20316 KB Output is correct
4 Correct 3 ms 20316 KB Output is correct
5 Correct 3 ms 20312 KB Output is correct
6 Correct 3 ms 20524 KB Output is correct
7 Correct 3 ms 20316 KB Output is correct
8 Correct 4 ms 20316 KB Output is correct
9 Correct 4 ms 20504 KB Output is correct
10 Correct 3 ms 20316 KB Output is correct
11 Correct 3 ms 20520 KB Output is correct
12 Correct 3 ms 20552 KB Output is correct
13 Correct 3 ms 20312 KB Output is correct
14 Correct 3 ms 20316 KB Output is correct
15 Correct 3 ms 20316 KB Output is correct
16 Correct 4 ms 20312 KB Output is correct
17 Correct 3 ms 20316 KB Output is correct
18 Correct 4 ms 20312 KB Output is correct
19 Correct 3 ms 20316 KB Output is correct
20 Correct 4 ms 20316 KB Output is correct
21 Correct 4 ms 20572 KB Output is correct
22 Correct 4 ms 20572 KB Output is correct
23 Correct 4 ms 20568 KB Output is correct
24 Correct 5 ms 20572 KB Output is correct
25 Correct 4 ms 20572 KB Output is correct
26 Correct 5 ms 20572 KB Output is correct
27 Correct 3 ms 20568 KB Output is correct
28 Correct 4 ms 20572 KB Output is correct
29 Correct 4 ms 20572 KB Output is correct
30 Correct 4 ms 20764 KB Output is correct
31 Correct 4 ms 20572 KB Output is correct
32 Correct 4 ms 20592 KB Output is correct
33 Correct 5 ms 20572 KB Output is correct
34 Correct 3 ms 20572 KB Output is correct
35 Correct 4 ms 20572 KB Output is correct
36 Correct 5 ms 20572 KB Output is correct
37 Correct 3 ms 20572 KB Output is correct
38 Correct 4 ms 20572 KB Output is correct
39 Correct 73 ms 39288 KB Output is correct
40 Correct 87 ms 39360 KB Output is correct
41 Correct 80 ms 39112 KB Output is correct
42 Correct 84 ms 38996 KB Output is correct
43 Correct 111 ms 48468 KB Output is correct
44 Correct 84 ms 41556 KB Output is correct
45 Correct 60 ms 41488 KB Output is correct
46 Correct 42 ms 49084 KB Output is correct
47 Correct 129 ms 47552 KB Output is correct
48 Correct 194 ms 85072 KB Output is correct
49 Correct 202 ms 83348 KB Output is correct
50 Correct 128 ms 47536 KB Output is correct
51 Correct 126 ms 47404 KB Output is correct
52 Correct 154 ms 47536 KB Output is correct
53 Correct 195 ms 51024 KB Output is correct
54 Correct 247 ms 76004 KB Output is correct
55 Correct 14 ms 22876 KB Output is correct
56 Correct 8 ms 21852 KB Output is correct
57 Correct 44 ms 37464 KB Output is correct
58 Correct 38 ms 32200 KB Output is correct
59 Correct 63 ms 53588 KB Output is correct
60 Correct 196 ms 83796 KB Output is correct
61 Correct 154 ms 50112 KB Output is correct
62 Correct 117 ms 47420 KB Output is correct
63 Correct 150 ms 47700 KB Output is correct
64 Correct 317 ms 89012 KB Output is correct
65 Correct 302 ms 87600 KB Output is correct
66 Correct 202 ms 79244 KB Output is correct
67 Correct 97 ms 43560 KB Output is correct
68 Correct 219 ms 60556 KB Output is correct
69 Correct 242 ms 64248 KB Output is correct
70 Correct 212 ms 58912 KB Output is correct