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Submission #1009246

# Submission time Handle Problem Language Result Execution time Memory
1009246 2024-06-27T10:30:17 Z oyber Rarest Insects (IOI22_insects) C++17
50 / 100
 133 ms 696 KB 
#include "insects.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> uniqu;
vector<int> insects;
int N;
vector<bool> used;
vector<int> last_used;

void empty() {
  for (int i = 0; i < int(last_used.size()); i++) {
    int a = last_used[i];
    move_outside(a);
    used[a] = false;
  }
}

bool check_num(int num) {
  last_used = vector<int>(0);
  //printf("num: %d\n", num);
  for (int i = 0; i < int(insects.size()); i++) {
    if (used[insects[i]]) continue;
    //printf("insect: %d\n", insects[i]);
    move_inside(insects[i]);
    if (press_button() >= num) {
      move_outside(insects[i]);
      continue;
    }
    used[insects[i]] = true;
    last_used.push_back(insects[i]);
  }

  //printf("n1: %d\n", press_button());
  bool valid = true;
  for (int i = 0; i < int(uniqu.size()); i++) {
    //printf("n2: %d\n", press_button());
    move_inside(uniqu[i]);
    //printf("n3: %d\n", press_button());
    if (press_button() != num) {
      //printf("not valid i=%d\n", uniqu[i]);
      move_outside(uniqu[i]);
      valid = false;
      break;
    }
    move_outside(uniqu[i]);
  }

  //printf("valid: %d\n", int(valid));
  return valid;
}

int min_cardinality(int n) {
  N = n;
  used.resize(N);
  int types = 0;
  for (int i = 0; i < N; i++) {
    move_inside(i);
    if (press_button() > 1) {
      move_outside(i);
      insects.push_back(i);
      continue;
    }
    types++;
    uniqu.push_back(i);
  }

  for (int i = 0; i < int(uniqu.size()); i++) {
    move_outside(uniqu[i]);
  }


  int l = 1;
  int r = N/types+1;
  while (l < r) {
    int m = (l+r)/2;
    if (check_num(m)) {
      l = m+1;
    } else {
      r = m;
      empty();
    }
  }
  return r-1;

  /*for (int i = 1; i <= N/types; i++) {
    if (!check_num(i)) {
      return i-1;
    }
  }
  return N/types;*/
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 4 ms 344 KB Output is correct
10 Correct 7 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 7 ms 344 KB Output is correct
13 Correct 6 ms 344 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 4 ms 436 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 3 ms 344 KB Output is correct
21 Correct 3 ms 344 KB Output is correct
22 Correct 2 ms 344 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 3 ms 344 KB Output is correct
9 Correct 4 ms 344 KB Output is correct
10 Correct 7 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 7 ms 344 KB Output is correct
13 Correct 6 ms 344 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 4 ms 436 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 4 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 3 ms 344 KB Output is correct
21 Correct 3 ms 344 KB Output is correct
22 Correct 2 ms 344 KB Output is correct
23 Correct 15 ms 444 KB Output is correct
24 Correct 12 ms 344 KB Output is correct
25 Correct 19 ms 600 KB Output is correct
26 Correct 24 ms 344 KB Output is correct
27 Correct 58 ms 440 KB Output is correct
28 Correct 13 ms 344 KB Output is correct
29 Correct 58 ms 444 KB Output is correct
30 Correct 48 ms 596 KB Output is correct
31 Correct 19 ms 344 KB Output is correct
32 Correct 14 ms 344 KB Output is correct
33 Correct 15 ms 344 KB Output is correct
34 Correct 18 ms 344 KB Output is correct
35 Correct 14 ms 344 KB Output is correct
36 Correct 24 ms 600 KB Output is correct
37 Correct 19 ms 344 KB Output is correct
38 Correct 17 ms 344 KB Output is correct
39 Correct 15 ms 344 KB Output is correct
40 Correct 11 ms 344 KB Output is correct
41 Correct 10 ms 344 KB Output is correct

Subtask #3
25.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 Partially correct 0 ms 344 KB Output is partially correct
7 Correct 25 ms 600 KB Output is correct
8 Correct 19 ms 344 KB Output is correct
9 Correct 24 ms 344 KB Output is correct
10 Partially correct 38 ms 344 KB Output is partially correct
11 Partially correct 133 ms 344 KB Output is partially correct
12 Correct 27 ms 600 KB Output is correct
13 Partially correct 126 ms 696 KB Output is partially correct
14 Partially correct 94 ms 596 KB Output is partially correct
15 Partially correct 30 ms 428 KB Output is partially correct
16 Partially correct 37 ms 344 KB Output is partially correct
17 Partially correct 40 ms 344 KB Output is partially correct
18 Partially correct 50 ms 344 KB Output is partially correct
19 Partially correct 50 ms 592 KB Output is partially correct
20 Partially correct 42 ms 344 KB Output is partially correct
21 Partially correct 52 ms 424 KB Output is partially correct
22 Partially correct 44 ms 344 KB Output is partially correct
23 Partially correct 52 ms 344 KB Output is partially correct
24 Partially correct 57 ms 604 KB Output is partially correct
25 Correct 21 ms 344 KB Output is correct
26 Correct 22 ms 692 KB Output is correct
27 Partially correct 31 ms 344 KB Output is partially correct
28 Partially correct 29 ms 440 KB Output is partially correct
29 Partially correct 35 ms 344 KB Output is partially correct
30 Partially correct 25 ms 344 KB Output is partially correct
31 Partially correct 52 ms 344 KB Output is partially correct
32 Partially correct 64 ms 600 KB Output is partially correct
33 Partially correct 43 ms 340 KB Output is partially correct
34 Partially correct 51 ms 600 KB Output is partially correct
35 Correct 29 ms 440 KB Output is correct
36 Partially correct 33 ms 344 KB Output is partially correct
37 Partially correct 61 ms 604 KB Output is partially correct
38 Partially correct 44 ms 344 KB Output is partially correct
39 Correct 37 ms 444 KB Output is correct
40 Correct 26 ms 600 KB Output is correct
41 Partially correct 36 ms 600 KB Output is partially correct
42 Partially correct 30 ms 600 KB Output is partially correct
43 Partially correct 16 ms 344 KB Output is partially correct
44 Partially correct 123 ms 440 KB Output is partially correct
45 Correct 24 ms 344 KB Output is correct
46 Correct 19 ms 344 KB Output is correct
47 Correct 23 ms 452 KB Output is correct
48 Correct 25 ms 444 KB Output is correct