Submission #847449

# Submission time Handle Problem Language Result Execution time Memory
847449 2023-09-09T16:28:36 Z NeroZein Rarest Insects (IOI22_insects) C++17
94.76 / 100
39 ms 840 KB
#include "insects.h"
#include "bits/stdc++.h"
using namespace std;

int min_cardinality(int N) {
  int distinct = 0; 
  vector<bool> inserted(N); 
  for (int i = 0; i < N; ++i) {
    move_inside(i);
    int most_freq = press_button();
    if (most_freq > 1) {
      move_outside(i);
    } else {
      inserted[i] = true;
      distinct++; 
    }
  }
  vector<bool> bad(N); 
  int l = 1, r = N / distinct;
  while (l < r) {
    int mid = (l + r + 1) / 2;
    for (int i = 0; i < N; ++i) {
      if (bad[i]) {
        continue; 
      }
      move_inside(i);
      int most_freq = press_button();
      if (most_freq > mid) {
        move_outside(i); 
      } else {
        move_inside(i); 
        inserted[i] = true; 
      }
    }
    int cnt = accumulate(inserted.begin(), inserted.end(), 0); 
    if (cnt == distinct * mid) {//inserted indices must not be removed under any condition
      l = mid;
      for (int i = 0; i < N; ++i) {
        if (inserted[i]) {
          bad[i] = true; 
        }
      }
    } else {//non-inserted indices must not be inserted under any condition
      r = mid - 1; 
      for (int i = 0; i < N; ++i) {
        if (!inserted[i]) {
          bad[i] = true; 
        } else if (!bad[i]) {
          inserted[i] = false;
          move_outside(i); 
        }
      }
    }
  }
  return l;
}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 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 0 ms 344 KB Output is correct
6 Correct 3 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 3 ms 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 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 0 ms 344 KB Output is correct
6 Correct 3 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 3 ms 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 3 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 15 ms 344 KB Output is correct
24 Correct 5 ms 344 KB Output is correct
25 Correct 10 ms 344 KB Output is correct
26 Correct 14 ms 344 KB Output is correct
27 Correct 17 ms 344 KB Output is correct
28 Correct 5 ms 344 KB Output is correct
29 Correct 11 ms 344 KB Output is correct
30 Correct 14 ms 344 KB Output is correct
31 Correct 15 ms 340 KB Output is correct
32 Correct 13 ms 596 KB Output is correct
33 Correct 14 ms 344 KB Output is correct
34 Correct 15 ms 344 KB Output is correct
35 Correct 11 ms 344 KB Output is correct
36 Correct 17 ms 344 KB Output is correct
37 Correct 11 ms 344 KB Output is correct
38 Correct 13 ms 344 KB Output is correct
39 Correct 14 ms 344 KB Output is correct
40 Correct 10 ms 600 KB Output is correct
41 Correct 4 ms 344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 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 0 ms 344 KB Output is correct
6 Partially correct 0 ms 344 KB Output is partially correct
7 Partially correct 29 ms 344 KB Output is partially correct
8 Correct 9 ms 344 KB Output is correct
9 Partially correct 22 ms 344 KB Output is partially correct
10 Partially correct 28 ms 344 KB Output is partially correct
11 Partially correct 23 ms 344 KB Output is partially correct
12 Correct 20 ms 412 KB Output is correct
13 Partially correct 31 ms 428 KB Output is partially correct
14 Partially correct 31 ms 408 KB Output is partially correct
15 Partially correct 30 ms 344 KB Output is partially correct
16 Partially correct 30 ms 344 KB Output is partially correct
17 Partially correct 33 ms 344 KB Output is partially correct
18 Partially correct 27 ms 344 KB Output is partially correct
19 Partially correct 27 ms 344 KB Output is partially correct
20 Partially correct 29 ms 344 KB Output is partially correct
21 Partially correct 29 ms 344 KB Output is partially correct
22 Partially correct 37 ms 592 KB Output is partially correct
23 Partially correct 27 ms 408 KB Output is partially correct
24 Partially correct 30 ms 408 KB Output is partially correct
25 Correct 17 ms 412 KB Output is correct
26 Correct 12 ms 596 KB Output is correct
27 Partially correct 26 ms 344 KB Output is partially correct
28 Partially correct 35 ms 340 KB Output is partially correct
29 Partially correct 27 ms 344 KB Output is partially correct
30 Partially correct 33 ms 344 KB Output is partially correct
31 Partially correct 29 ms 408 KB Output is partially correct
32 Partially correct 29 ms 412 KB Output is partially correct
33 Partially correct 32 ms 592 KB Output is partially correct
34 Partially correct 33 ms 840 KB Output is partially correct
35 Partially correct 28 ms 344 KB Output is partially correct
36 Partially correct 32 ms 344 KB Output is partially correct
37 Partially correct 28 ms 428 KB Output is partially correct
38 Partially correct 28 ms 344 KB Output is partially correct
39 Partially correct 30 ms 504 KB Output is partially correct
40 Partially correct 23 ms 344 KB Output is partially correct
41 Partially correct 27 ms 344 KB Output is partially correct
42 Partially correct 27 ms 344 KB Output is partially correct
43 Partially correct 6 ms 344 KB Output is partially correct
44 Correct 17 ms 344 KB Output is correct
45 Partially correct 39 ms 344 KB Output is partially correct
46 Correct 28 ms 408 KB Output is correct
47 Correct 16 ms 592 KB Output is correct
48 Correct 19 ms 592 KB Output is correct