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Submission #798451

# Submission time Handle Problem Language Result Execution time Memory
798451 2023-07-30T17:41:39 Z jakobrs Radio Towers (IOI22_towers) C++17
14 / 100
 803 ms 1836 KB 
#include <vector>

int n;
std::vector<int> h;

std::vector<int> minima_sums;

void init(int N, std::vector<int> H) {
  n = N;
  h = H;

  minima_sums.reserve(N + 1);
  minima_sums.push_back(0);

  for (int i = 0; i < N; i++) {
    bool left_ok = i == 0 || H[i - 1] > H[i];
    bool right_ok = i + 1 == N || H[i + 1] > H[i];
    minima_sums.push_back(minima_sums.back() + (left_ok && right_ok));
  }
}

int max_towers(int L, int R, int D) {
  if (L == R) return 1;
  R += 1;

  int total = minima_sums[R - 1] - minima_sums[L + 1];
  if (h[L + 1] > h[L]) {
    total += 1;
  }
  if (h[R - 2] > h[R - 1]) {
    total += 1;
  }

  return total;
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 205 ms 1164 KB 2nd lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB 1st lines differ - on the 1st token, expected: '13', found: '16'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB 1st lines differ - on the 1st token, expected: '13', found: '16'
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 487 ms 1808 KB Output is correct
2 Correct 620 ms 1796 KB Output is correct
3 Correct 614 ms 1804 KB Output is correct
4 Correct 793 ms 1820 KB Output is correct
5 Correct 650 ms 1776 KB Output is correct
6 Correct 581 ms 1744 KB Output is correct
7 Correct 640 ms 1804 KB Output is correct
8 Correct 574 ms 1816 KB Output is correct
9 Correct 569 ms 1816 KB Output is correct
10 Correct 803 ms 1744 KB Output is correct
11 Correct 595 ms 1744 KB Output is correct
12 Correct 717 ms 1736 KB Output is correct
13 Correct 702 ms 1836 KB Output is correct
14 Correct 0 ms 208 KB Output is correct
15 Correct 0 ms 208 KB Output is correct
16 Correct 0 ms 208 KB Output is correct
17 Correct 9 ms 1736 KB Output is correct
18 Correct 9 ms 1736 KB Output is correct
19 Correct 9 ms 1744 KB Output is correct
20 Correct 9 ms 1744 KB Output is correct
21 Correct 8 ms 1800 KB Output is correct
22 Correct 12 ms 1836 KB Output is correct
23 Correct 9 ms 1824 KB Output is correct
24 Correct 9 ms 1804 KB Output is correct
25 Correct 9 ms 1816 KB Output is correct
26 Correct 14 ms 1736 KB Output is correct
27 Correct 0 ms 208 KB Output is correct
28 Correct 0 ms 208 KB Output is correct
29 Correct 0 ms 208 KB Output is correct
30 Correct 0 ms 208 KB Output is correct
31 Correct 0 ms 208 KB Output is correct
32 Correct 0 ms 260 KB Output is correct
33 Correct 0 ms 208 KB Output is correct
34 Correct 0 ms 208 KB Output is correct
35 Correct 0 ms 208 KB Output is correct
36 Correct 1 ms 208 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 222 ms 648 KB 1st lines differ - on the 1st token, expected: '7197', found: '8004'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB 1st lines differ - on the 1st token, expected: '13', found: '16'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 205 ms 1164 KB 2nd lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -