Submission #837489

# Submission time Handle Problem Language Result Execution time Memory
837489 2023-08-25T11:22:28 Z erekle Rarest Insects (IOI22_insects) C++17
98.88 / 100
51 ms 328 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 >= 50) 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 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 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 3 ms 208 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 2 ms 252 KB Output is correct
12 Correct 6 ms 208 KB Output is correct
13 Correct 6 ms 208 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 7 ms 208 KB Output is correct
16 Correct 4 ms 208 KB Output is correct
17 Correct 3 ms 208 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 6 ms 208 KB Output is correct
20 Correct 4 ms 208 KB Output is correct
21 Correct 3 ms 328 KB Output is correct
22 Correct 2 ms 208 KB Output is correct
# 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 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 3 ms 208 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 2 ms 252 KB Output is correct
12 Correct 6 ms 208 KB Output is correct
13 Correct 6 ms 208 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 7 ms 208 KB Output is correct
16 Correct 4 ms 208 KB Output is correct
17 Correct 3 ms 208 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 6 ms 208 KB Output is correct
20 Correct 4 ms 208 KB Output is correct
21 Correct 3 ms 328 KB Output is correct
22 Correct 2 ms 208 KB Output is correct
23 Correct 7 ms 208 KB Output is correct
24 Correct 8 ms 208 KB Output is correct
25 Correct 21 ms 208 KB Output is correct
26 Correct 22 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 19 ms 208 KB Output is correct
30 Correct 18 ms 268 KB Output is correct
31 Correct 16 ms 208 KB Output is correct
32 Correct 20 ms 208 KB Output is correct
33 Correct 21 ms 208 KB Output is correct
34 Correct 16 ms 208 KB Output is correct
35 Correct 14 ms 208 KB Output is correct
36 Correct 14 ms 208 KB Output is correct
37 Correct 10 ms 208 KB Output is correct
38 Correct 18 ms 208 KB Output is correct
39 Correct 19 ms 208 KB Output is correct
40 Correct 13 ms 208 KB Output is correct
41 Correct 8 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 1 ms 208 KB Output is correct
7 Correct 18 ms 208 KB Output is correct
8 Correct 17 ms 208 KB Output is correct
9 Correct 34 ms 208 KB Output is correct
10 Correct 51 ms 268 KB Output is correct
11 Correct 37 ms 268 KB Output is correct
12 Correct 14 ms 208 KB Output is correct
13 Partially correct 39 ms 256 KB Output is partially correct
14 Partially correct 47 ms 208 KB Output is partially correct
15 Correct 39 ms 208 KB Output is correct
16 Correct 32 ms 208 KB Output is correct
17 Correct 28 ms 208 KB Output is correct
18 Correct 41 ms 208 KB Output is correct
19 Correct 29 ms 208 KB Output is correct
20 Correct 27 ms 208 KB Output is correct
21 Correct 40 ms 264 KB Output is correct
22 Correct 38 ms 208 KB Output is correct
23 Correct 27 ms 208 KB Output is correct
24 Correct 24 ms 208 KB Output is correct
25 Correct 21 ms 208 KB Output is correct
26 Correct 13 ms 208 KB Output is correct
27 Correct 34 ms 208 KB Output is correct
28 Correct 26 ms 208 KB Output is correct
29 Correct 45 ms 208 KB Output is correct
30 Correct 34 ms 208 KB Output is correct
31 Correct 33 ms 208 KB Output is correct
32 Correct 49 ms 264 KB Output is correct
33 Correct 31 ms 208 KB Output is correct
34 Correct 36 ms 208 KB Output is correct
35 Partially correct 34 ms 208 KB Output is partially correct
36 Correct 32 ms 208 KB Output is correct
37 Correct 37 ms 208 KB Output is correct
38 Correct 48 ms 268 KB Output is correct
39 Correct 49 ms 208 KB Output is correct
40 Correct 33 ms 208 KB Output is correct
41 Correct 24 ms 208 KB Output is correct
42 Partially correct 48 ms 208 KB Output is partially correct
43 Correct 11 ms 208 KB Output is correct
44 Correct 36 ms 208 KB Output is correct
45 Correct 29 ms 208 KB Output is correct
46 Correct 17 ms 208 KB Output is correct
47 Correct 23 ms 208 KB Output is correct
48 Correct 25 ms 208 KB Output is correct