Submission #977982

# Submission time Handle Problem Language Result Execution time Memory
977982 2024-05-08T15:24:13 Z mircea_007 Rarest Insects (IOI22_insects) C++17
99.56 / 100
35 ms 924 KB
#include "insects.h"
#include <vector>
     
// void move_inside(int i)
// void move_outside(int i)
// int press_button()
     
// gaseste numarul de valori distincte in N operatii
int dist_val( int N ) {
  std::vector<bool> rem( N, false );
      
  int ret = 0;
  for( int i = 0 ; i < N ; i++ ){
    move_inside( i );
     
    if( press_button() > 1 )
      move_outside( i );
    else{
      ret++;
      rem[i] = true;
    }
  }
     
  // cleanup
  for( int i = 0 ; i < N ; i++ )
    if( rem[i] )
      move_outside( i );
     
  return ret;
}
     
bool at_least_x( std::vector<int> &poz, int x, int dist ) {
  int n = (int)poz.size();
  std::vector<bool> rem( n, false );
     
  int good_poz = 0;
  for( int i = 0 ; i < n ; i++ ){
    move_inside( poz[i] );
     
    if( press_button() > x )
      move_outside( poz[i] );
    else{
      rem[i] = true;
      good_poz++;
    }
  }
     
  // cleanup
  for( int i = 0 ; i < n ; i++ )
    if( rem[i] )
      move_outside( poz[i] );
     
  bool decision = (good_poz == dist * x); // min(freq) >= x
     
  int news = 0;
  for( int i = 0 ; i < n ; i++ )
    if( rem[i] != decision )
      poz[news++] = poz[i];
  poz.erase( poz.begin() + news, poz.end() );
     
  return decision;
}
     
int min_cardinality( int N ) {
  int dist = dist_val( N );
     
  std::vector<int> poz;
  for( int i = 0 ; i < N ; i++ )
    poz.push_back( i );
     
  int st = 0, dr = N / dist + 1;
  while( dr - st > 1 ){
    int mij = (st + dr) >> 1;
    int bias = (dr - st) / 100;

    mij -= bias;
     
    if( at_least_x( poz, mij - st, dist ) )
      st = mij;
    else
      dr = mij;
  }
     
  return st;
}
# 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 2 ms 344 KB Output is correct
7 Correct 2 ms 344 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 3 ms 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 2 ms 600 KB Output is correct
13 Correct 3 ms 424 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 2 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 2 ms 420 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 2 ms 344 KB Output is correct
# 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 2 ms 344 KB Output is correct
7 Correct 2 ms 344 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 3 ms 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 2 ms 600 KB Output is correct
13 Correct 3 ms 424 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 2 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 2 ms 420 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 2 ms 344 KB Output is correct
23 Correct 11 ms 600 KB Output is correct
24 Correct 9 ms 424 KB Output is correct
25 Correct 12 ms 600 KB Output is correct
26 Correct 13 ms 600 KB Output is correct
27 Correct 10 ms 600 KB Output is correct
28 Correct 9 ms 600 KB Output is correct
29 Correct 13 ms 600 KB Output is correct
30 Correct 11 ms 600 KB Output is correct
31 Correct 13 ms 600 KB Output is correct
32 Correct 12 ms 600 KB Output is correct
33 Correct 13 ms 600 KB Output is correct
34 Correct 11 ms 420 KB Output is correct
35 Correct 12 ms 600 KB Output is correct
36 Correct 12 ms 600 KB Output is correct
37 Correct 12 ms 600 KB Output is correct
38 Correct 11 ms 424 KB Output is correct
39 Correct 13 ms 600 KB Output is correct
40 Correct 11 ms 600 KB Output is correct
41 Correct 8 ms 852 KB Output is correct
# 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 596 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Partially correct 32 ms 432 KB Output is partially correct
8 Correct 24 ms 852 KB Output is correct
9 Correct 23 ms 648 KB Output is correct
10 Correct 22 ms 848 KB Output is correct
11 Correct 25 ms 344 KB Output is correct
12 Correct 27 ms 840 KB Output is correct
13 Correct 22 ms 416 KB Output is correct
14 Correct 28 ms 596 KB Output is correct
15 Partially correct 27 ms 608 KB Output is partially correct
16 Partially correct 26 ms 600 KB Output is partially correct
17 Partially correct 28 ms 420 KB Output is partially correct
18 Partially correct 30 ms 652 KB Output is partially correct
19 Partially correct 28 ms 600 KB Output is partially correct
20 Partially correct 23 ms 924 KB Output is partially correct
21 Correct 27 ms 908 KB Output is correct
22 Correct 28 ms 848 KB Output is correct
23 Correct 24 ms 848 KB Output is correct
24 Correct 20 ms 608 KB Output is correct
25 Correct 24 ms 668 KB Output is correct
26 Correct 18 ms 840 KB Output is correct
27 Partially correct 27 ms 912 KB Output is partially correct
28 Partially correct 35 ms 592 KB Output is partially correct
29 Partially correct 32 ms 688 KB Output is partially correct
30 Partially correct 28 ms 412 KB Output is partially correct
31 Correct 30 ms 768 KB Output is correct
32 Correct 24 ms 668 KB Output is correct
33 Correct 28 ms 600 KB Output is correct
34 Correct 29 ms 432 KB Output is correct
35 Partially correct 30 ms 420 KB Output is partially correct
36 Partially correct 28 ms 844 KB Output is partially correct
37 Correct 30 ms 860 KB Output is correct
38 Correct 26 ms 656 KB Output is correct
39 Partially correct 33 ms 668 KB Output is partially correct
40 Partially correct 28 ms 672 KB Output is partially correct
41 Partially correct 30 ms 844 KB Output is partially correct
42 Partially correct 30 ms 668 KB Output is partially correct
43 Correct 5 ms 600 KB Output is correct
44 Correct 19 ms 600 KB Output is correct
45 Partially correct 23 ms 428 KB Output is partially correct
46 Correct 25 ms 840 KB Output is correct
47 Correct 22 ms 668 KB Output is correct
48 Correct 22 ms 648 KB Output is correct