oj.uz

Submission #958093

# Submission time Handle Problem Language Result Execution time Memory
958093 2024-04-04T22:08:57 Z d4xn Tropical Garden (IOI11_garden) C++17
69 / 100
 5000 ms 74836 KB 
#pragma GCC optimize("Ofast,unroll-loops,no-stack-protector,fast-math,inline")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,lzcnt,mmx,abm,avx,avx2,fma")
#include "garden.h"
#include "gardenlib.h"
#include <bits/stdc++.h>
using namespace std;

const int N = 15e4, B = 30;

int n, m, p, q, adj[2][N];
pair<int, int> dp[2][B][N];

int f(int x, int k) {
  pair<int, int> pr = make_pair(0, x);
  for (int i = 29; i >= 0; i--) {
    if ((k >> i) & 1) {
      pr = dp[pr.first][i][pr.second];
    }
  }
  return pr.second;
}

void count_routes(int n, int m, int p, int R[][2], int q, int G[])
{
  for (int i = 0; i < n; i++) {
    adj[0][i] = adj[1][i] = -1;
  }

  for (int i = 0; i < m; i++) {
    int x = R[i][0];
    int y = R[i][1];

    if (adj[0][x] == -1) {
      adj[0][x] = adj[1][x] = y;
    }
    else if (adj[1][x] == adj[0][x]) {
      adj[1][x] = y;
    }

    if (adj[0][y] == -1) {
      adj[0][y] = adj[1][y] = x;
    }
    else if (adj[1][y] == adj[0][y]) {
      adj[1][y] = x;
    }
  }

  for (int i = 0; i < n; i++) {
    int x = adj[0][i];
    if (x == -1) {
      dp[0][0][i] = make_pair(0, i);
    }
    else {
      dp[0][0][i] = make_pair((adj[0][x] == i ? 1 : 0), x);
    }

    x = adj[1][i];
    if (x == -1) {
      dp[1][0][i] = make_pair(0, i);
    }
    else {
      dp[1][0][i] = make_pair((adj[0][x] == i ? 1 : 0), x);
    }
  }

  for (int i = 1; i < B; i++) {
    for (int j = 0; j < n; j++) {
      pair<int, int> mid = dp[0][i-1][j];
      dp[0][i][j] = dp[mid.first][i-1][mid.second];

      mid = dp[1][i-1][j];
      dp[1][i][j] = dp[mid.first][i-1][mid.second];
    }
  }

  cin >> q;
  for (int i = 0; i < q; i++) {
    int x = G[i];

    int ans = 0;
    for (int j = 0; j < n; j++) {
      if (f(j, x) == p) ans++;
    }
    answer(ans);
  }
}

Subtask #1
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 72024 KB Output is correct
2 Correct 8 ms 72028 KB Output is correct
3 Correct 8 ms 72028 KB Output is correct
4 Correct 8 ms 72024 KB Output is correct
5 Correct 7 ms 72028 KB Output is correct
6 Correct 8 ms 72028 KB Output is correct
7 Correct 8 ms 72128 KB Output is correct
8 Correct 9 ms 72024 KB Output is correct
9 Correct 9 ms 72028 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 72024 KB Output is correct
2 Correct 8 ms 72028 KB Output is correct
3 Correct 8 ms 72028 KB Output is correct
4 Correct 8 ms 72024 KB Output is correct
5 Correct 7 ms 72028 KB Output is correct
6 Correct 8 ms 72028 KB Output is correct
7 Correct 8 ms 72128 KB Output is correct
8 Correct 9 ms 72024 KB Output is correct
9 Correct 9 ms 72028 KB Output is correct
10 Correct 9 ms 72028 KB Output is correct
11 Correct 12 ms 72364 KB Output is correct
12 Correct 19 ms 74328 KB Output is correct
13 Correct 27 ms 74332 KB Output is correct
14 Correct 45 ms 74836 KB Output is correct
15 Correct 42 ms 74412 KB Output is correct
16 Correct 36 ms 74332 KB Output is correct
17 Correct 34 ms 74452 KB Output is correct
18 Correct 19 ms 74328 KB Output is correct
19 Correct 42 ms 74460 KB Output is correct
20 Correct 41 ms 74404 KB Output is correct
21 Correct 42 ms 74324 KB Output is correct
22 Correct 35 ms 74428 KB Output is correct
23 Correct 44 ms 74420 KB Output is correct

Subtask #3
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 72024 KB Output is correct
2 Correct 8 ms 72028 KB Output is correct
3 Correct 8 ms 72028 KB Output is correct
4 Correct 8 ms 72024 KB Output is correct
5 Correct 7 ms 72028 KB Output is correct
6 Correct 8 ms 72028 KB Output is correct
7 Correct 8 ms 72128 KB Output is correct
8 Correct 9 ms 72024 KB Output is correct
9 Correct 9 ms 72028 KB Output is correct
10 Correct 9 ms 72028 KB Output is correct
11 Correct 12 ms 72364 KB Output is correct
12 Correct 19 ms 74328 KB Output is correct
13 Correct 27 ms 74332 KB Output is correct
14 Correct 45 ms 74836 KB Output is correct
15 Correct 42 ms 74412 KB Output is correct
16 Correct 36 ms 74332 KB Output is correct
17 Correct 34 ms 74452 KB Output is correct
18 Correct 19 ms 74328 KB Output is correct
19 Correct 42 ms 74460 KB Output is correct
20 Correct 41 ms 74404 KB Output is correct
21 Correct 42 ms 74324 KB Output is correct
22 Correct 35 ms 74428 KB Output is correct
23 Correct 44 ms 74420 KB Output is correct
24 Correct 12 ms 72252 KB Output is correct
25 Correct 1817 ms 72404 KB Output is correct
26 Correct 3384 ms 74460 KB Output is correct
27 Execution timed out 5094 ms 74452 KB Time limit exceeded
28 Halted 0 ms 0 KB -