oj.uz

Submission #1042022

# Submission time Handle Problem Language Result Execution time Memory
1042022 2024-08-02T12:29:55 Z vjudge1 Tropical Garden (IOI11_garden) C++17
69 / 100
 5000 ms 47192 KB 
#include "garden.h"
#include "gardenlib.h"
#include <bits/stdc++.h>

using namespace std;

void count_routes(int N, int M, int P, int R[][2], int Q, int G[])
{
  vector<vector<int>> adj(N);
  for (int i = 0; i < M; ++i) {
    adj[R[i][0]].push_back(R[i][1]);
    adj[R[i][1]].push_back(R[i][0]);
  }

  auto node = [&](int u, int v) {
    if (adj[v][0] == u)
      return N+v;
    else
      return v;
  };

  const int J = 29;
  vector<vector<int>> succ(J+1, vector<int>(2*N, -1));
  for (int i = 0; i < N; ++i) {
    succ[0][node(-1, i)] = node(i, adj[i][0]);
    for (int v : adj[i]) {
      if (v != adj[i][0] or adj[i].size() == 1)
        succ[0][node(v, i)] = node(i, adj[i][0]);
      else
        succ[0][node(v, i)] = node(i, adj[i][1]);
    }
  }

  for (int j = 1; j <= J; ++j) {
    for (int u = 0; u < 2*N; ++u) {
      succ[j][u] = succ[j-1][ succ[j-1][u] ];
    }
  }

  for(int it = 0; it < Q; ++it) {
    int K = G[it];
    int cnt = 0;

    for (int i = 0; i < N; ++i) {
      int u = node(-1, i);
      
      for (int j = J; j >= 0; --j) {
        if (K & (1 << j)) u = succ[j][u];
      }

      if (u == P or u == N+P) ++cnt;
    }

    answer(cnt);
  }
}

Subtask #1
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 860 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 860 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 9308 KB Output is correct
12 Correct 15 ms 13928 KB Output is correct
13 Correct 24 ms 27996 KB Output is correct
14 Correct 56 ms 42868 KB Output is correct
15 Correct 57 ms 43348 KB Output is correct
16 Correct 40 ms 30288 KB Output is correct
17 Correct 37 ms 26192 KB Output is correct
18 Correct 18 ms 13992 KB Output is correct
19 Correct 53 ms 42832 KB Output is correct
20 Correct 63 ms 43348 KB Output is correct
21 Correct 72 ms 30288 KB Output is correct
22 Correct 40 ms 25944 KB Output is correct
23 Correct 58 ms 47192 KB Output is correct

Subtask #3
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 860 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 7 ms 9308 KB Output is correct
12 Correct 15 ms 13928 KB Output is correct
13 Correct 24 ms 27996 KB Output is correct
14 Correct 56 ms 42868 KB Output is correct
15 Correct 57 ms 43348 KB Output is correct
16 Correct 40 ms 30288 KB Output is correct
17 Correct 37 ms 26192 KB Output is correct
18 Correct 18 ms 13992 KB Output is correct
19 Correct 53 ms 42832 KB Output is correct
20 Correct 63 ms 43348 KB Output is correct
21 Correct 72 ms 30288 KB Output is correct
22 Correct 40 ms 25944 KB Output is correct
23 Correct 58 ms 47192 KB Output is correct
24 Correct 5 ms 344 KB Output is correct
25 Correct 1614 ms 9560 KB Output is correct
26 Correct 2759 ms 13916 KB Output is correct
27 Correct 3374 ms 29008 KB Output is correct
28 Execution timed out 5021 ms 44628 KB Time limit exceeded
29 Halted 0 ms 0 KB -