oj.uz

Submission #830927

# Submission time Handle Problem Language Result Execution time Memory
830927 2023-08-19T13:00:27 Z erray Rarest Insects (IOI22_insects) C++17
99.76 / 100
 54 ms 288 KB 
#include "insects.h"
#include <bits/stdc++.h>

using namespace std;

#ifdef DEBUG 
  #include "/home/eagle/ioi22/d2/debug.h"
#else 
  #define debug(...) void(37)
#endif

int min_cardinality(int N) {
  vector<bool> in_set(N);
  vector<bool> deact(N);
  int cur = 0;
  auto Move = [&](int x) {
    if (x < cur) {
      for (int i = 0; i < N; ++i) {
        if (in_set[i] && !deact[i]) {
          in_set[i] = false;
          move_outside(i);
        }
      }
    } 
    for (int i = 0; i < N; ++i) {
      if (!in_set[i] && !deact[i]) {
        move_inside(i);
        in_set[i] = true;
        if (press_button() > x) {
          move_outside(i);
          in_set[i] = false;
        }
      }
    }
    cur = x;
    return accumulate(in_set.begin(), in_set.end(), 0);
  };
  int K = Move(1);
  for (int i = 0; i < N; ++i) {
    if (in_set[i]) {
      deact[i] = true;
    }
  }
         debug(K);
  int low = 2, high = (N / K) + 1;
  while (low < high) {
    int size = N - accumulate(deact.begin(), deact.end(), 0);
    int mid = low;
    int ls = K, rs = size - K;
    while (ls + K <= rs - K && mid + 1 <= high) {
      ls += K, rs -= K;
      ++mid;
    }
    if (ls > rs && mid > low) {
      --mid;
    }
    int card = Move(mid);
    debug(mid, card);
    if (card == K * mid) {
      low = mid + 1;
      for (int i = 0; i < N; ++i) {
        if (in_set[i]) {
          deact[i] = true;
        }
      }
    } else {
      for (int i = 0; i < N; ++i) {
        if (!in_set[i]) {
          deact[i] = true;
        }
      }
      high = mid;
    }
  }
  return low - 1;
}

Subtask #1
10.0 / 10.0

# 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 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 4 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 7 ms 208 KB Output is correct
9 Correct 2 ms 208 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 4 ms 208 KB Output is correct
14 Correct 3 ms 208 KB Output is correct
15 Correct 5 ms 208 KB Output is correct
16 Correct 5 ms 208 KB Output is correct
17 Correct 4 ms 208 KB Output is correct
18 Correct 4 ms 208 KB Output is correct
19 Correct 5 ms 208 KB Output is correct
20 Correct 3 ms 208 KB Output is correct
21 Correct 2 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# 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 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 4 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 7 ms 208 KB Output is correct
9 Correct 2 ms 208 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 4 ms 208 KB Output is correct
14 Correct 3 ms 208 KB Output is correct
15 Correct 5 ms 208 KB Output is correct
16 Correct 5 ms 208 KB Output is correct
17 Correct 4 ms 208 KB Output is correct
18 Correct 4 ms 208 KB Output is correct
19 Correct 5 ms 208 KB Output is correct
20 Correct 3 ms 208 KB Output is correct
21 Correct 2 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
23 Correct 26 ms 208 KB Output is correct
24 Correct 8 ms 208 KB Output is correct
25 Correct 20 ms 208 KB Output is correct
26 Correct 25 ms 208 KB Output is correct
27 Correct 20 ms 208 KB Output is correct
28 Correct 9 ms 208 KB Output is correct
29 Correct 17 ms 208 KB Output is correct
30 Correct 22 ms 208 KB Output is correct
31 Correct 16 ms 208 KB Output is correct
32 Correct 27 ms 208 KB Output is correct
33 Correct 19 ms 208 KB Output is correct
34 Correct 18 ms 208 KB Output is correct
35 Correct 25 ms 208 KB Output is correct
36 Correct 25 ms 208 KB Output is correct
37 Correct 26 ms 208 KB Output is correct
38 Correct 19 ms 208 KB Output is correct
39 Correct 13 ms 208 KB Output is correct
40 Correct 10 ms 208 KB Output is correct
41 Correct 7 ms 208 KB Output is correct

Subtask #3
74.76 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 36 ms 208 KB Output is correct
8 Correct 15 ms 208 KB Output is correct
9 Partially correct 33 ms 208 KB Output is partially correct
10 Correct 32 ms 208 KB Output is correct
11 Correct 28 ms 208 KB Output is correct
12 Correct 18 ms 208 KB Output is correct
13 Correct 34 ms 208 KB Output is correct
14 Correct 40 ms 208 KB Output is correct
15 Correct 41 ms 208 KB Output is correct
16 Correct 38 ms 208 KB Output is correct
17 Correct 54 ms 208 KB Output is correct
18 Correct 45 ms 208 KB Output is correct
19 Correct 39 ms 208 KB Output is correct
20 Correct 36 ms 208 KB Output is correct
21 Correct 51 ms 208 KB Output is correct
22 Correct 34 ms 208 KB Output is correct
23 Correct 39 ms 208 KB Output is correct
24 Correct 22 ms 208 KB Output is correct
25 Correct 25 ms 208 KB Output is correct
26 Correct 15 ms 208 KB Output is correct
27 Partially correct 34 ms 208 KB Output is partially correct
28 Partially correct 40 ms 208 KB Output is partially correct
29 Partially correct 40 ms 208 KB Output is partially correct
30 Partially correct 33 ms 208 KB Output is partially correct
31 Correct 36 ms 288 KB Output is correct
32 Correct 48 ms 208 KB Output is correct
33 Correct 23 ms 288 KB Output is correct
34 Correct 36 ms 208 KB Output is correct
35 Partially correct 52 ms 208 KB Output is partially correct
36 Partially correct 30 ms 208 KB Output is partially correct
37 Correct 36 ms 280 KB Output is correct
38 Correct 37 ms 276 KB Output is correct
39 Partially correct 32 ms 208 KB Output is partially correct
40 Partially correct 51 ms 208 KB Output is partially correct
41 Partially correct 31 ms 280 KB Output is partially correct
42 Partially correct 42 ms 208 KB Output is partially correct
43 Correct 13 ms 208 KB Output is correct
44 Correct 34 ms 208 KB Output is correct
45 Correct 21 ms 208 KB Output is correct
46 Correct 19 ms 208 KB Output is correct
47 Correct 26 ms 208 KB Output is correct
48 Correct 23 ms 208 KB Output is correct