oj.uz

Submission #798477

# Submission time Handle Problem Language Result Execution time Memory
798477 2023-07-30T18:20:14 Z jakobrs Radio Towers (IOI22_towers) C++17
37 / 100
 4000 ms 1860 KB 
#include <vector>

#ifndef EVAL
#include <format>
#include <iostream>

template <typename... Args>
void print(std::format_string<Args...> fmt, Args &&...args) {
  std::cerr << std::format(fmt, std::forward<Args>(args)...);
}

template <typename... Args>
void println(std::format_string<Args...> fmt, Args &&...args) {
  std::cerr << std::format(fmt, std::forward<Args>(args)...) << '\n';
}
#else
template <typename... T> void print(T &&...args) {}
template <typename... T> void println(T &&...args) {}
#endif

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;

  if (D == 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;
  } else {
    std::vector<int> included{h[L]};
    int greatest = h[L];
    for (int i = L + 1; i < R; i++) {
      if (h[i] > greatest) {
        // println("Found new intermediary: {}", h[i]);
        greatest = h[i];
      } else if (greatest - included.back() < D) {
        if (h[i] < included.back()) {
          // println("Found better tower: {} instead of {}", h[i],
          // included.back());
          included.pop_back();
          included.push_back(h[i]);
          greatest = h[i];
        } else {
          // println("Found new tower, but it's worse: {} instead of {}", h[i],
          // included.back());
        }
      } else if (greatest - h[i] >= D) {
        // println("Found new tower: {} (previous was {}, greatest: {})", h[i],
        // included.back(), greatest);
        included.push_back(h[i]);
        greatest = h[i];
      }
    }

    return included.size();
  }
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 989 ms 1176 KB Output is correct
2 Correct 2788 ms 1824 KB Output is correct
3 Correct 2732 ms 1816 KB Output is correct
4 Correct 2788 ms 1836 KB Output is correct
5 Execution timed out 4022 ms 1744 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 0 ms 208 KB Output is correct
12 Correct 0 ms 208 KB Output is correct
13 Correct 0 ms 208 KB Output is correct
14 Correct 0 ms 208 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 0 ms 208 KB Output is correct
17 Correct 0 ms 208 KB Output is correct
18 Correct 0 ms 208 KB Output is correct
19 Correct 0 ms 208 KB Output is correct
20 Correct 0 ms 208 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 0 ms 208 KB Output is correct
23 Correct 0 ms 208 KB Output is correct
24 Correct 0 ms 208 KB Output is correct
25 Correct 0 ms 208 KB Output is correct
26 Correct 0 ms 208 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 208 KB Output is correct
33 Correct 1 ms 208 KB Output is correct
34 Correct 0 ms 208 KB Output is correct
35 Correct 0 ms 208 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 0 ms 208 KB Output is correct
12 Correct 0 ms 208 KB Output is correct
13 Correct 0 ms 208 KB Output is correct
14 Correct 0 ms 208 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 0 ms 208 KB Output is correct
17 Correct 0 ms 208 KB Output is correct
18 Correct 0 ms 208 KB Output is correct
19 Correct 0 ms 208 KB Output is correct
20 Correct 0 ms 208 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 0 ms 208 KB Output is correct
23 Correct 0 ms 208 KB Output is correct
24 Correct 0 ms 208 KB Output is correct
25 Correct 0 ms 208 KB Output is correct
26 Correct 0 ms 208 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 208 KB Output is correct
33 Correct 1 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 6 ms 1232 KB Output is correct
37 Correct 9 ms 1828 KB Output is correct
38 Correct 11 ms 1804 KB Output is correct
39 Correct 9 ms 1744 KB Output is correct
40 Correct 9 ms 1832 KB Output is correct
41 Correct 9 ms 1744 KB Output is correct
42 Correct 15 ms 1824 KB Output is correct
43 Correct 11 ms 1812 KB Output is correct
44 Correct 15 ms 1820 KB Output is correct
45 Correct 9 ms 1832 KB Output is correct
46 Correct 9 ms 1828 KB Output is correct
47 Correct 10 ms 1840 KB Output is correct
48 Correct 12 ms 1800 KB Output is correct
49 Correct 9 ms 1828 KB Output is correct
50 Correct 9 ms 1820 KB Output is correct
51 Correct 12 ms 1816 KB Output is correct
52 Correct 9 ms 1816 KB Output is correct
53 Correct 9 ms 1744 KB Output is correct
54 Correct 9 ms 1744 KB Output is correct
55 Correct 8 ms 1816 KB Output is correct
56 Correct 8 ms 1736 KB Output is correct
57 Correct 9 ms 1816 KB Output is correct
58 Correct 9 ms 1836 KB Output is correct
59 Correct 9 ms 1744 KB Output is correct
60 Correct 12 ms 1856 KB Output is correct
61 Correct 13 ms 1828 KB Output is correct
62 Correct 9 ms 1812 KB Output is correct
63 Correct 9 ms 1836 KB Output is correct
64 Correct 9 ms 1744 KB Output is correct
65 Correct 11 ms 1832 KB Output is correct
66 Correct 9 ms 1744 KB Output is correct
67 Correct 9 ms 1808 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 545 ms 1744 KB Output is correct
2 Correct 800 ms 1832 KB Output is correct
3 Correct 696 ms 1836 KB Output is correct
4 Correct 762 ms 1804 KB Output is correct
5 Correct 691 ms 1744 KB Output is correct
6 Correct 547 ms 1744 KB Output is correct
7 Correct 596 ms 1836 KB Output is correct
8 Correct 884 ms 1836 KB Output is correct
9 Correct 667 ms 1836 KB Output is correct
10 Correct 660 ms 1860 KB Output is correct
11 Correct 776 ms 1816 KB Output is correct
12 Correct 658 ms 1744 KB Output is correct
13 Correct 596 ms 1744 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 15 ms 1736 KB Output is correct
18 Correct 17 ms 1744 KB Output is correct
19 Correct 15 ms 1824 KB Output is correct
20 Correct 9 ms 1796 KB Output is correct
21 Correct 8 ms 1744 KB Output is correct
22 Correct 9 ms 1744 KB Output is correct
23 Correct 9 ms 1812 KB Output is correct
24 Correct 11 ms 1840 KB Output is correct
25 Correct 10 ms 1832 KB Output is correct
26 Correct 8 ms 1820 KB Output is correct
27 Correct 0 ms 208 KB Output is correct
28 Correct 1 ms 256 KB Output is correct
29 Correct 0 ms 284 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 208 KB Output is correct
33 Correct 0 ms 208 KB Output is correct
34 Correct 1 ms 208 KB Output is correct
35 Correct 0 ms 208 KB Output is correct
36 Correct 0 ms 208 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 3941 ms 632 KB Output is correct
2 Execution timed out 4005 ms 1744 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 0 ms 208 KB Output is correct
12 Correct 0 ms 208 KB Output is correct
13 Correct 0 ms 208 KB Output is correct
14 Correct 0 ms 208 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 0 ms 208 KB Output is correct
17 Correct 0 ms 208 KB Output is correct
18 Correct 0 ms 208 KB Output is correct
19 Correct 0 ms 208 KB Output is correct
20 Correct 0 ms 208 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 0 ms 208 KB Output is correct
23 Correct 0 ms 208 KB Output is correct
24 Correct 0 ms 208 KB Output is correct
25 Correct 0 ms 208 KB Output is correct
26 Correct 0 ms 208 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 208 KB Output is correct
33 Correct 1 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 6 ms 1232 KB Output is correct
37 Correct 9 ms 1828 KB Output is correct
38 Correct 11 ms 1804 KB Output is correct
39 Correct 9 ms 1744 KB Output is correct
40 Correct 9 ms 1832 KB Output is correct
41 Correct 9 ms 1744 KB Output is correct
42 Correct 15 ms 1824 KB Output is correct
43 Correct 11 ms 1812 KB Output is correct
44 Correct 15 ms 1820 KB Output is correct
45 Correct 9 ms 1832 KB Output is correct
46 Correct 9 ms 1828 KB Output is correct
47 Correct 10 ms 1840 KB Output is correct
48 Correct 12 ms 1800 KB Output is correct
49 Correct 9 ms 1828 KB Output is correct
50 Correct 9 ms 1820 KB Output is correct
51 Correct 12 ms 1816 KB Output is correct
52 Correct 9 ms 1816 KB Output is correct
53 Correct 9 ms 1744 KB Output is correct
54 Correct 9 ms 1744 KB Output is correct
55 Correct 8 ms 1816 KB Output is correct
56 Correct 8 ms 1736 KB Output is correct
57 Correct 9 ms 1816 KB Output is correct
58 Correct 9 ms 1836 KB Output is correct
59 Correct 9 ms 1744 KB Output is correct
60 Correct 12 ms 1856 KB Output is correct
61 Correct 13 ms 1828 KB Output is correct
62 Correct 9 ms 1812 KB Output is correct
63 Correct 9 ms 1836 KB Output is correct
64 Correct 9 ms 1744 KB Output is correct
65 Correct 11 ms 1832 KB Output is correct
66 Correct 9 ms 1744 KB Output is correct
67 Correct 9 ms 1808 KB Output is correct
68 Correct 545 ms 1744 KB Output is correct
69 Correct 800 ms 1832 KB Output is correct
70 Correct 696 ms 1836 KB Output is correct
71 Correct 762 ms 1804 KB Output is correct
72 Correct 691 ms 1744 KB Output is correct
73 Correct 547 ms 1744 KB Output is correct
74 Correct 596 ms 1836 KB Output is correct
75 Correct 884 ms 1836 KB Output is correct
76 Correct 667 ms 1836 KB Output is correct
77 Correct 660 ms 1860 KB Output is correct
78 Correct 776 ms 1816 KB Output is correct
79 Correct 658 ms 1744 KB Output is correct
80 Correct 596 ms 1744 KB Output is correct
81 Correct 0 ms 208 KB Output is correct
82 Correct 0 ms 208 KB Output is correct
83 Correct 0 ms 208 KB Output is correct
84 Correct 15 ms 1736 KB Output is correct
85 Correct 17 ms 1744 KB Output is correct
86 Correct 15 ms 1824 KB Output is correct
87 Correct 9 ms 1796 KB Output is correct
88 Correct 8 ms 1744 KB Output is correct
89 Correct 9 ms 1744 KB Output is correct
90 Correct 9 ms 1812 KB Output is correct
91 Correct 11 ms 1840 KB Output is correct
92 Correct 10 ms 1832 KB Output is correct
93 Correct 8 ms 1820 KB Output is correct
94 Correct 0 ms 208 KB Output is correct
95 Correct 1 ms 256 KB Output is correct
96 Correct 0 ms 284 KB Output is correct
97 Correct 0 ms 208 KB Output is correct
98 Correct 0 ms 208 KB Output is correct
99 Correct 0 ms 208 KB Output is correct
100 Correct 0 ms 208 KB Output is correct
101 Correct 1 ms 208 KB Output is correct
102 Correct 0 ms 208 KB Output is correct
103 Correct 0 ms 208 KB Output is correct
104 Execution timed out 4075 ms 1652 KB Time limit exceeded
105 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 989 ms 1176 KB Output is correct
2 Correct 2788 ms 1824 KB Output is correct
3 Correct 2732 ms 1816 KB Output is correct
4 Correct 2788 ms 1836 KB Output is correct
5 Execution timed out 4022 ms 1744 KB Time limit exceeded
6 Halted 0 ms 0 KB -