Submission #837512

# Submission time Handle Problem Language Result Execution time Memory
837512 2023-08-25T11:40:42 Z erekle Rarest Insects (IOI22_insects) C++17
98.88 / 100
57 ms 284 KB
#include "insects.h"
#include <vector>

using namespace std;

int cnt = 0;
vector<bool> inside;
void in(int i) {
  if (!inside[i]) {
    ++cnt;
    move_inside(i);
    inside[i] = true;
  }
}
void out(int i) {
  if (inside[i]) {
    --cnt;
    move_outside(i);
    inside[i] = false;
  }
}

int min_cardinality(int N) {
  inside.resize(N);
  vector<bool> defInside(N), defOutside(N);
  for (int i = 0; i < N; ++i) {
    in(i);
    if (press_button() > 1) out(i);
    else defInside[i] = true;
  }

  int m = cnt;
  if (m == 1) return N;
  int left = 1, right = 1 + N/m;
  while (left+1 < right) {
    int k;
    if (m >= 100) k = (60*left + 40*right) / 100;
    else if (m >= 75) k = (left + right) / 2;
    else k = (40*left + 60*right) / 100;
    if (k == left) ++k;
    else if (k == right) --k;
    for (int i = 0; i < N; ++i) {
      if (!defInside[i] && !defOutside[i] && inside[i]) out(i);
    }
    for (int i = 0; i < N && cnt < k*m; ++i) {
      if (!defInside[i] && !defOutside[i]) {
        in(i);
        if (press_button() > k) out(i);
      }
    }
    bool atLeastK = cnt == k * m;
    for (int i = 0; i < N; ++i) {
      if (!defInside[i] && !defOutside[i]) {
        if (atLeastK) {
          if (inside[i]) defInside[i] = true;
        } else {
          if (!inside[i]) defOutside[i] = true;
        }
      }
    }
    if (atLeastK) left = k;
    else right = k;
  }
  return left;
}
# 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 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 2 ms 208 KB Output is correct
9 Correct 5 ms 208 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 5 ms 208 KB Output is correct
13 Correct 5 ms 208 KB Output is correct
14 Correct 5 ms 208 KB Output is correct
15 Correct 3 ms 208 KB Output is correct
16 Correct 4 ms 208 KB Output is correct
17 Correct 5 ms 208 KB Output is correct
18 Correct 4 ms 208 KB Output is correct
19 Correct 3 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 2 ms 208 KB Output is correct
# 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 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 2 ms 208 KB Output is correct
9 Correct 5 ms 208 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 5 ms 208 KB Output is correct
13 Correct 5 ms 208 KB Output is correct
14 Correct 5 ms 208 KB Output is correct
15 Correct 3 ms 208 KB Output is correct
16 Correct 4 ms 208 KB Output is correct
17 Correct 5 ms 208 KB Output is correct
18 Correct 4 ms 208 KB Output is correct
19 Correct 3 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 2 ms 208 KB Output is correct
23 Correct 9 ms 208 KB Output is correct
24 Correct 6 ms 208 KB Output is correct
25 Correct 15 ms 208 KB Output is correct
26 Correct 25 ms 208 KB Output is correct
27 Correct 24 ms 208 KB Output is correct
28 Correct 6 ms 208 KB Output is correct
29 Correct 27 ms 208 KB Output is correct
30 Correct 21 ms 268 KB Output is correct
31 Correct 16 ms 208 KB Output is correct
32 Correct 14 ms 208 KB Output is correct
33 Correct 15 ms 208 KB Output is correct
34 Correct 19 ms 208 KB Output is correct
35 Correct 20 ms 208 KB Output is correct
36 Correct 14 ms 208 KB Output is correct
37 Correct 21 ms 208 KB Output is correct
38 Correct 13 ms 208 KB Output is correct
39 Correct 8 ms 208 KB Output is correct
40 Correct 9 ms 208 KB Output is correct
41 Correct 6 ms 208 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 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 0 ms 208 KB Output is correct
7 Correct 16 ms 208 KB Output is correct
8 Correct 12 ms 208 KB Output is correct
9 Correct 40 ms 208 KB Output is correct
10 Correct 38 ms 268 KB Output is correct
11 Correct 42 ms 208 KB Output is correct
12 Correct 20 ms 208 KB Output is correct
13 Partially correct 41 ms 208 KB Output is partially correct
14 Partially correct 57 ms 208 KB Output is partially correct
15 Correct 29 ms 208 KB Output is correct
16 Correct 31 ms 208 KB Output is correct
17 Correct 40 ms 208 KB Output is correct
18 Correct 27 ms 208 KB Output is correct
19 Correct 30 ms 208 KB Output is correct
20 Correct 36 ms 268 KB Output is correct
21 Correct 47 ms 268 KB Output is correct
22 Correct 28 ms 208 KB Output is correct
23 Correct 30 ms 208 KB Output is correct
24 Correct 24 ms 208 KB Output is correct
25 Correct 25 ms 208 KB Output is correct
26 Correct 16 ms 208 KB Output is correct
27 Correct 36 ms 208 KB Output is correct
28 Correct 30 ms 208 KB Output is correct
29 Correct 34 ms 208 KB Output is correct
30 Correct 37 ms 208 KB Output is correct
31 Correct 38 ms 268 KB Output is correct
32 Correct 33 ms 268 KB Output is correct
33 Correct 29 ms 264 KB Output is correct
34 Correct 30 ms 208 KB Output is correct
35 Correct 35 ms 208 KB Output is correct
36 Correct 17 ms 284 KB Output is correct
37 Correct 50 ms 264 KB Output is correct
38 Correct 36 ms 208 KB Output is correct
39 Correct 49 ms 208 KB Output is correct
40 Correct 21 ms 208 KB Output is correct
41 Correct 42 ms 208 KB Output is correct
42 Correct 38 ms 208 KB Output is correct
43 Correct 9 ms 208 KB Output is correct
44 Correct 38 ms 208 KB Output is correct
45 Correct 33 ms 208 KB Output is correct
46 Correct 11 ms 208 KB Output is correct
47 Correct 25 ms 208 KB Output is correct
48 Correct 20 ms 208 KB Output is correct