oj.uz

Submission #634717

# Submission time Handle Problem Language Result Execution time Memory
634717 2022-08-24T17:55:46 Z hltk Rarest Insects (IOI22_insects) C++17
100 / 100
 58 ms 428 KB 
#include "insects.h"

#include <algorithm>
#include <numeric>
#include <random>
#include <vector>

using namespace std;

int min_cardinality(int n) {
  mt19937_64 gen{312321321321};
  vector<int> inds(n);
  iota(inds.begin(), inds.end(), 0);
  shuffle(inds.begin(), inds.end(), gen);
  vector<int> avail;
  int inside = 0, types = 0;
  for (int i : inds) {
    move_inside(i), inside++;
    if (press_button() == 1) {
      types++;
    } else {
      avail.push_back(i);
      move_outside(i), inside--;
    }
  }
  if (types == 1 || types == n) {
    return 1 ^ n ^ types;
  }
  int l = 1, r = n / types;
  while (l < r) {
    int m = (l + r + 1) / 2, k = m;
    vector<int> vin, vout;
    shuffle(avail.begin(), avail.end(), gen);
    for (int i : avail) {
      if (inside == k * types) {
        vout.push_back(i);
        continue;
      }
      move_inside(i), inside++;
      if (press_button() > k) {
        move_outside(i), inside--;
        vout.push_back(i);
      } else {
        vin.push_back(i);
      }
    }
    if (inside < k * types) {
      for (int u : vin) {
        move_outside(u), inside--;
      }
      avail = vin;
      r = m - 1;
    } else {
      avail = vout;
      l = m;
    }
  }
  return l;
}

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 1 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 4 ms 208 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 6 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 6 ms 208 KB Output is correct
16 Correct 7 ms 208 KB Output is correct
17 Correct 5 ms 208 KB Output is correct
18 Correct 6 ms 208 KB Output is correct
19 Correct 4 ms 208 KB Output is correct
20 Correct 4 ms 208 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 2 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 1 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 4 ms 208 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 6 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 6 ms 208 KB Output is correct
16 Correct 7 ms 208 KB Output is correct
17 Correct 5 ms 208 KB Output is correct
18 Correct 6 ms 208 KB Output is correct
19 Correct 4 ms 208 KB Output is correct
20 Correct 4 ms 208 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 2 ms 208 KB Output is correct
23 Correct 7 ms 292 KB Output is correct
24 Correct 9 ms 208 KB Output is correct
25 Correct 20 ms 292 KB Output is correct
26 Correct 30 ms 336 KB Output is correct
27 Correct 17 ms 208 KB Output is correct
28 Correct 8 ms 208 KB Output is correct
29 Correct 28 ms 296 KB Output is correct
30 Correct 22 ms 292 KB Output is correct
31 Correct 23 ms 208 KB Output is correct
32 Correct 20 ms 296 KB Output is correct
33 Correct 23 ms 292 KB Output is correct
34 Correct 24 ms 292 KB Output is correct
35 Correct 22 ms 208 KB Output is correct
36 Correct 22 ms 208 KB Output is correct
37 Correct 15 ms 284 KB Output is correct
38 Correct 21 ms 208 KB Output is correct
39 Correct 21 ms 296 KB Output is correct
40 Correct 17 ms 292 KB Output is correct
41 Correct 9 ms 288 KB Output is correct

Subtask #3
75.0 / 75.0

# 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 0 ms 208 KB Output is correct
7 Correct 14 ms 208 KB Output is correct
8 Correct 15 ms 208 KB Output is correct
9 Correct 51 ms 300 KB Output is correct
10 Correct 46 ms 412 KB Output is correct
11 Correct 39 ms 296 KB Output is correct
12 Correct 29 ms 208 KB Output is correct
13 Correct 58 ms 208 KB Output is correct
14 Correct 41 ms 300 KB Output is correct
15 Correct 20 ms 428 KB Output is correct
16 Correct 46 ms 296 KB Output is correct
17 Correct 39 ms 304 KB Output is correct
18 Correct 40 ms 300 KB Output is correct
19 Correct 26 ms 300 KB Output is correct
20 Correct 44 ms 300 KB Output is correct
21 Correct 42 ms 296 KB Output is correct
22 Correct 53 ms 300 KB Output is correct
23 Correct 38 ms 292 KB Output is correct
24 Correct 51 ms 292 KB Output is correct
25 Correct 23 ms 296 KB Output is correct
26 Correct 17 ms 296 KB Output is correct
27 Correct 39 ms 208 KB Output is correct
28 Correct 43 ms 344 KB Output is correct
29 Correct 43 ms 296 KB Output is correct
30 Correct 39 ms 292 KB Output is correct
31 Correct 41 ms 296 KB Output is correct
32 Correct 51 ms 288 KB Output is correct
33 Correct 44 ms 336 KB Output is correct
34 Correct 46 ms 412 KB Output is correct
35 Correct 43 ms 300 KB Output is correct
36 Correct 49 ms 300 KB Output is correct
37 Correct 52 ms 304 KB Output is correct
38 Correct 57 ms 292 KB Output is correct
39 Correct 35 ms 292 KB Output is correct
40 Correct 40 ms 300 KB Output is correct
41 Correct 41 ms 208 KB Output is correct
42 Correct 37 ms 336 KB Output is correct
43 Correct 17 ms 208 KB Output is correct
44 Correct 39 ms 288 KB Output is correct
45 Correct 38 ms 296 KB Output is correct
46 Correct 29 ms 292 KB Output is correct
47 Correct 20 ms 208 KB Output is correct
48 Correct 13 ms 296 KB Output is correct