oj.uz

Submission #1045643

# Submission time Handle Problem Language Result Execution time Memory
1045643 2024-08-06T06:41:21 Z Soumya1 Rarest Insects (IOI22_insects) C++17
99.78 / 100
 34 ms 944 KB 
#include "insects.h"
#include <bits/stdc++.h>
using namespace std;
int get_distinct(int n) {
  vector<int> ans = {0};
  move_inside(0);
  for (int i = 1; i < n; i++) {
    move_inside(i);
    if (press_button() != 1) {
      move_outside(i);
    } else {
      ans.push_back(i);
    }
  }
  for (int i : ans) move_outside(i);
  return ans.size();
}
int min_cardinality(int n) {
  int d = get_distinct(n);
  int lo = 1, hi = n / d;
  vector<int> all(n);
  iota(all.begin(), all.end(), 0);
  int total_in = 0;
  auto check = [&](int mid) {
    vector<int> in, out;
    for (int i : all) {
      move_inside(i);
      if (press_button() > mid) {
        out.push_back(i);
        move_outside(i);
      } else {
        in.push_back(i);
      }
    }
    if (total_in + in.size() == d * mid) {
      total_in += in.size();
      all = out;
      return true;
    }
    for (int i : in) move_outside(i);
    all = in;
    return false;
  };
  while (lo < hi) {
    int mid = (lo + hi + 1) >> 1;
    if (check(mid)) lo = mid;
    else hi = mid - 1;
  }
  return lo;
}

Compilation message

insects.cpp: In lambda function:
insects.cpp:35:30: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   35 |     if (total_in + in.size() == d * mid) {
      |         ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# 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 436 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 436 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 3 ms 344 KB Output is correct
13 Correct 2 ms 600 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 2 ms 440 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 3 ms 600 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 3 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 600 KB Output is correct

Subtask #2
15.0 / 15.0

# 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 436 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 436 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 3 ms 344 KB Output is correct
13 Correct 2 ms 600 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 2 ms 440 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 3 ms 600 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 3 ms 344 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 600 KB Output is correct
23 Correct 14 ms 344 KB Output is correct
24 Correct 3 ms 344 KB Output is correct
25 Correct 8 ms 344 KB Output is correct
26 Correct 12 ms 600 KB Output is correct
27 Correct 14 ms 440 KB Output is correct
28 Correct 6 ms 440 KB Output is correct
29 Correct 16 ms 436 KB Output is correct
30 Correct 15 ms 344 KB Output is correct
31 Correct 11 ms 436 KB Output is correct
32 Correct 15 ms 600 KB Output is correct
33 Correct 12 ms 436 KB Output is correct
34 Correct 10 ms 344 KB Output is correct
35 Correct 10 ms 600 KB Output is correct
36 Correct 14 ms 692 KB Output is correct
37 Correct 15 ms 440 KB Output is correct
38 Correct 7 ms 856 KB Output is correct
39 Correct 11 ms 444 KB Output is correct
40 Correct 9 ms 344 KB Output is correct
41 Correct 5 ms 600 KB Output is correct

Subtask #3
74.78 / 75.0

# 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 0 ms 344 KB Output is correct
7 Correct 22 ms 440 KB Output is correct
8 Correct 4 ms 344 KB Output is correct
9 Correct 27 ms 684 KB Output is correct
10 Correct 23 ms 424 KB Output is correct
11 Correct 23 ms 600 KB Output is correct
12 Correct 9 ms 600 KB Output is correct
13 Correct 20 ms 864 KB Output is correct
14 Correct 21 ms 428 KB Output is correct
15 Correct 22 ms 668 KB Output is correct
16 Correct 27 ms 436 KB Output is correct
17 Correct 21 ms 344 KB Output is correct
18 Correct 18 ms 428 KB Output is correct
19 Partially correct 34 ms 600 KB Output is partially correct
20 Correct 25 ms 696 KB Output is correct
21 Correct 27 ms 684 KB Output is correct
22 Partially correct 24 ms 604 KB Output is partially correct
23 Correct 28 ms 944 KB Output is correct
24 Correct 12 ms 692 KB Output is correct
25 Correct 26 ms 344 KB Output is correct
26 Correct 6 ms 344 KB Output is correct
27 Correct 22 ms 432 KB Output is correct
28 Correct 33 ms 432 KB Output is correct
29 Partially correct 26 ms 600 KB Output is partially correct
30 Partially correct 24 ms 600 KB Output is partially correct
31 Correct 19 ms 592 KB Output is correct
32 Correct 29 ms 432 KB Output is correct
33 Correct 25 ms 684 KB Output is correct
34 Correct 28 ms 592 KB Output is correct
35 Partially correct 21 ms 344 KB Output is partially correct
36 Partially correct 25 ms 344 KB Output is partially correct
37 Correct 27 ms 436 KB Output is correct
38 Correct 23 ms 608 KB Output is correct
39 Correct 27 ms 344 KB Output is correct
40 Correct 28 ms 592 KB Output is correct
41 Partially correct 18 ms 676 KB Output is partially correct
42 Partially correct 23 ms 344 KB Output is partially correct
43 Correct 4 ms 344 KB Output is correct
44 Correct 19 ms 592 KB Output is correct
45 Correct 31 ms 600 KB Output is correct
46 Correct 19 ms 344 KB Output is correct
47 Correct 14 ms 344 KB Output is correct
48 Correct 18 ms 680 KB Output is correct