Submission #838681

# Submission time Handle Problem Language Result Execution time Memory
838681 2023-08-27T15:05:15 Z taher Rarest Insects (IOI22_insects) C++17
57.14 / 100
125 ms 544 KB
#include "insects.h"
#include <bits/stdc++.h>

using namespace std;

int min_cardinality(int N) {
  int n = N;
  vector<int> in(n);
  
  vector<int> roots;
  for (int i = 0; i < n; i++) {
    move_inside(i);
    if (press_button() == 2) {
      move_outside(i); 
    } else {
      roots.push_back(i);
      in[i] = true; 
    }
  }
  assert((int) roots.size() > 0);
  
  if ((int) roots.size() < 9) {
    int res = 1234567;
    
    for (int i = 0; i < (int) roots.size(); i++) {
      move_outside(roots[i]); 
    }
    for (int it = 0; it < (int) roots.size(); it++) {
      move_inside(roots[it]);
      int cnt = 1;
      
      for (int j = 0; j < n; j++) {
        if (j == roots[it]) {
          continue; 
        }
        
        move_inside(j);
        if (press_button() == 2) {
          cnt++; 
        }
        move_outside(j);
      }
      
      res = min(res, cnt);
      move_outside(roots[it]); 
    }
    return res;  
  }
  
  auto Check = [&](int mid) {
    vector<int> cnt;
    for (int i = 0; i < n; i++) {
      if (in[i]) {
        continue; 
      }
      move_inside(i);
      if (press_button() > mid) {
        move_outside(i);
      } else {
        cnt.push_back(i);
      } 
    }
    for (int i = 0; i < (int) cnt.size(); i++) {
      move_outside(cnt[i]); 
    }
    if ((int) cnt.size() == (mid - 1) * (int) roots.size()) {
      return true; 
    }
    return false;
  };
  
  int low = 1, high = n / (int) roots.size();
  
  while (low <= high) {
    int mid = low + (high - low) / 2;
    
    if (Check(mid)) {
      low = mid + 1;
    } else  {
      high = mid - 1; 
    } 
  }
  --low;
  return low;
}
# 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 1 ms 208 KB Output is correct
6 Correct 3 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 7 ms 300 KB Output is correct
9 Correct 6 ms 296 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 10 ms 208 KB Output is correct
13 Correct 7 ms 208 KB Output is correct
14 Correct 6 ms 208 KB Output is correct
15 Correct 6 ms 208 KB Output is correct
16 Correct 6 ms 300 KB Output is correct
17 Correct 6 ms 300 KB Output is correct
18 Correct 8 ms 208 KB Output is correct
19 Correct 5 ms 208 KB Output is correct
20 Correct 5 ms 208 KB Output is correct
21 Correct 4 ms 208 KB Output is correct
22 Correct 2 ms 300 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 1 ms 208 KB Output is correct
6 Correct 3 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 7 ms 300 KB Output is correct
9 Correct 6 ms 296 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 10 ms 208 KB Output is correct
13 Correct 7 ms 208 KB Output is correct
14 Correct 6 ms 208 KB Output is correct
15 Correct 6 ms 208 KB Output is correct
16 Correct 6 ms 300 KB Output is correct
17 Correct 6 ms 300 KB Output is correct
18 Correct 8 ms 208 KB Output is correct
19 Correct 5 ms 208 KB Output is correct
20 Correct 5 ms 208 KB Output is correct
21 Correct 4 ms 208 KB Output is correct
22 Correct 2 ms 300 KB Output is correct
23 Correct 14 ms 208 KB Output is correct
24 Correct 7 ms 208 KB Output is correct
25 Correct 51 ms 288 KB Output is correct
26 Correct 43 ms 292 KB Output is correct
27 Correct 27 ms 208 KB Output is correct
28 Correct 9 ms 304 KB Output is correct
29 Correct 38 ms 208 KB Output is correct
30 Correct 38 ms 300 KB Output is correct
31 Correct 41 ms 208 KB Output is correct
32 Correct 59 ms 208 KB Output is correct
33 Correct 54 ms 284 KB Output is correct
34 Correct 49 ms 304 KB Output is correct
35 Correct 42 ms 328 KB Output is correct
36 Correct 44 ms 304 KB Output is correct
37 Correct 30 ms 208 KB Output is correct
38 Correct 31 ms 208 KB Output is correct
39 Correct 17 ms 208 KB Output is correct
40 Correct 16 ms 292 KB Output is correct
41 Correct 8 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 1 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 24 ms 208 KB Output is correct
8 Correct 7 ms 316 KB Output is correct
9 Partially correct 84 ms 304 KB Output is partially correct
10 Partially correct 75 ms 404 KB Output is partially correct
11 Correct 41 ms 208 KB Output is correct
12 Correct 20 ms 312 KB Output is correct
13 Partially correct 77 ms 208 KB Output is partially correct
14 Partially correct 79 ms 304 KB Output is partially correct
15 Partially correct 52 ms 208 KB Output is partially correct
16 Partially correct 117 ms 208 KB Output is partially correct
17 Partially correct 120 ms 400 KB Output is partially correct
18 Partially correct 93 ms 416 KB Output is partially correct
19 Partially correct 125 ms 304 KB Output is partially correct
20 Partially correct 86 ms 388 KB Output is partially correct
21 Partially correct 79 ms 296 KB Output is partially correct
22 Partially correct 65 ms 308 KB Output is partially correct
23 Partially correct 50 ms 208 KB Output is partially correct
24 Correct 27 ms 304 KB Output is correct
25 Correct 29 ms 292 KB Output is correct
26 Correct 15 ms 208 KB Output is correct
27 Partially correct 81 ms 304 KB Output is partially correct
28 Partially correct 78 ms 304 KB Output is partially correct
29 Partially correct 102 ms 304 KB Output is partially correct
30 Partially correct 105 ms 300 KB Output is partially correct
31 Partially correct 75 ms 308 KB Output is partially correct
32 Partially correct 83 ms 300 KB Output is partially correct
33 Partially correct 62 ms 288 KB Output is partially correct
34 Partially correct 43 ms 296 KB Output is partially correct
35 Partially correct 54 ms 308 KB Output is partially correct
36 Partially correct 76 ms 304 KB Output is partially correct
37 Partially correct 88 ms 304 KB Output is partially correct
38 Partially correct 67 ms 544 KB Output is partially correct
39 Partially correct 74 ms 300 KB Output is partially correct
40 Partially correct 77 ms 336 KB Output is partially correct
41 Partially correct 70 ms 432 KB Output is partially correct
42 Partially correct 95 ms 296 KB Output is partially correct
43 Partially correct 25 ms 208 KB Output is partially correct
44 Partially correct 99 ms 208 KB Output is partially correct
45 Correct 47 ms 208 KB Output is correct
46 Correct 27 ms 304 KB Output is correct
47 Correct 23 ms 208 KB Output is correct
48 Correct 27 ms 208 KB Output is correct