oj.uz

Submission #1035129

# Submission time Handle Problem Language Result Execution time Memory
1035129 2024-07-26T05:05:36 Z NeroZein Radio Towers (IOI22_towers) C++17
23 / 100
 4000 ms 10080 KB 
#include "towers.h"
#include <bits/stdc++.h>
using namespace std; 

const int LOG = 18; 

int n;
vector<int> h;
vector<int> spa[LOG];

int get_max(int l, int r) {
  int lg = 31 - __builtin_clz(r - l + 1);
  return max(spa[lg][l], spa[lg][r - (1 << lg) + 1]);
}

void init(int N_, vector<int> H_) {
  n = N_, h = H_;
  spa[0] = h;
  for (int j = 1; (1 << j) <= n && j < LOG; ++j) {
    spa[j].resize(n - (1 << j) + 1); 
    for (int i = 0; i + (1 << j) <= n; ++i) {
      spa[j][i] = max(spa[j - 1][i], spa[j - 1][i + (1 << (j - 1))]);
    }
  }
}

int max_towers(int l, int r, int d) {
  vector<int> ord;
  for (int i = l; i <= r; ++i) {
    ord.push_back(i); 
  }
  sort(ord.begin(), ord.end(), [&](int i, int j) {
    return h[i] < h[j];
  });
  set<int> se; 
  for (int i : ord) {
    auto it = se.lower_bound(i);
    bool ok = true;
    if (it != se.end()) {
      int nxt = *it; 
      if (nxt == i + 1 || get_max(i + 1, nxt - 1) < h[i] + d) {
        ok = false; 
      }
    }
    if (it != se.begin()) {
      int pre = *prev(it); 
      if (pre == i - 1 || get_max(pre + 1, i - 1) < h[i] + d) {
        ok = false; 
      }
    }
    if (ok) {
      se.insert(i); 
    }
  }
  return (int) se.size();
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4059 ms 5064 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 344 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 12 ms 4952 KB Output is correct
37 Correct 19 ms 7692 KB Output is correct
38 Correct 14 ms 7768 KB Output is correct
39 Correct 15 ms 7768 KB Output is correct
40 Correct 14 ms 7664 KB Output is correct
41 Correct 32 ms 8400 KB Output is correct
42 Correct 21 ms 7744 KB Output is correct
43 Correct 13 ms 7768 KB Output is correct
44 Correct 12 ms 7596 KB Output is correct
45 Correct 12 ms 7768 KB Output is correct
46 Correct 11 ms 7596 KB Output is correct
47 Correct 20 ms 7888 KB Output is correct
48 Correct 16 ms 7888 KB Output is correct
49 Correct 13 ms 7768 KB Output is correct
50 Correct 12 ms 7732 KB Output is correct
51 Correct 12 ms 7768 KB Output is correct
52 Correct 40 ms 9300 KB Output is correct
53 Correct 42 ms 9928 KB Output is correct
54 Correct 43 ms 10080 KB Output is correct
55 Correct 13 ms 8144 KB Output is correct
56 Correct 21 ms 8056 KB Output is correct
57 Correct 32 ms 7900 KB Output is correct
58 Correct 40 ms 8656 KB Output is correct
59 Correct 38 ms 8784 KB Output is correct
60 Correct 42 ms 9936 KB Output is correct
61 Correct 49 ms 9732 KB Output is correct
62 Correct 39 ms 8940 KB Output is correct
63 Correct 48 ms 9672 KB Output is correct
64 Correct 16 ms 8144 KB Output is correct
65 Correct 13 ms 8144 KB Output is correct
66 Correct 14 ms 8144 KB Output is correct
67 Correct 13 ms 8120 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4093 ms 9224 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4018 ms 2444 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 12 ms 4952 KB Output is correct
37 Correct 19 ms 7692 KB Output is correct
38 Correct 14 ms 7768 KB Output is correct
39 Correct 15 ms 7768 KB Output is correct
40 Correct 14 ms 7664 KB Output is correct
41 Correct 32 ms 8400 KB Output is correct
42 Correct 21 ms 7744 KB Output is correct
43 Correct 13 ms 7768 KB Output is correct
44 Correct 12 ms 7596 KB Output is correct
45 Correct 12 ms 7768 KB Output is correct
46 Correct 11 ms 7596 KB Output is correct
47 Correct 20 ms 7888 KB Output is correct
48 Correct 16 ms 7888 KB Output is correct
49 Correct 13 ms 7768 KB Output is correct
50 Correct 12 ms 7732 KB Output is correct
51 Correct 12 ms 7768 KB Output is correct
52 Correct 40 ms 9300 KB Output is correct
53 Correct 42 ms 9928 KB Output is correct
54 Correct 43 ms 10080 KB Output is correct
55 Correct 13 ms 8144 KB Output is correct
56 Correct 21 ms 8056 KB Output is correct
57 Correct 32 ms 7900 KB Output is correct
58 Correct 40 ms 8656 KB Output is correct
59 Correct 38 ms 8784 KB Output is correct
60 Correct 42 ms 9936 KB Output is correct
61 Correct 49 ms 9732 KB Output is correct
62 Correct 39 ms 8940 KB Output is correct
63 Correct 48 ms 9672 KB Output is correct
64 Correct 16 ms 8144 KB Output is correct
65 Correct 13 ms 8144 KB Output is correct
66 Correct 14 ms 8144 KB Output is correct
67 Correct 13 ms 8120 KB Output is correct
68 Execution timed out 4093 ms 9224 KB Time limit exceeded
69 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4059 ms 5064 KB Time limit exceeded
2 Halted 0 ms 0 KB -