oj.uz

Submission #1042024

# Submission time Handle Problem Language Result Execution time Memory
1042024 2024-08-02T12:30:24 Z izanbf Tropical Garden (IOI11_garden) C++14
69 / 100
 5000 ms 47188 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 1 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 1 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 1 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 1 ms 604 KB Output is correct
9 Correct 1 ms 860 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 7 ms 9308 KB Output is correct
12 Correct 15 ms 14092 KB Output is correct
13 Correct 24 ms 27996 KB Output is correct
14 Correct 58 ms 43036 KB Output is correct
15 Correct 62 ms 43436 KB Output is correct
16 Correct 39 ms 30296 KB Output is correct
17 Correct 35 ms 26204 KB Output is correct
18 Correct 17 ms 13916 KB Output is correct
19 Correct 56 ms 42832 KB Output is correct
20 Correct 54 ms 43356 KB Output is correct
21 Correct 40 ms 30300 KB Output is correct
22 Correct 42 ms 25948 KB Output is correct
23 Correct 71 ms 47188 KB Output is correct

Subtask #3
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 604 KB Output is correct
9 Correct 1 ms 860 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 7 ms 9308 KB Output is correct
12 Correct 15 ms 14092 KB Output is correct
13 Correct 24 ms 27996 KB Output is correct
14 Correct 58 ms 43036 KB Output is correct
15 Correct 62 ms 43436 KB Output is correct
16 Correct 39 ms 30296 KB Output is correct
17 Correct 35 ms 26204 KB Output is correct
18 Correct 17 ms 13916 KB Output is correct
19 Correct 56 ms 42832 KB Output is correct
20 Correct 54 ms 43356 KB Output is correct
21 Correct 40 ms 30300 KB Output is correct
22 Correct 42 ms 25948 KB Output is correct
23 Correct 71 ms 47188 KB Output is correct
24 Correct 5 ms 348 KB Output is correct
25 Correct 1454 ms 9304 KB Output is correct
26 Correct 2468 ms 13912 KB Output is correct
27 Correct 3201 ms 27992 KB Output is correct
28 Execution timed out 5074 ms 42836 KB Time limit exceeded
29 Halted 0 ms 0 KB -