Submission #642242

# Submission time Handle Problem Language Result Execution time Memory
642242 2022-09-19T02:57:32 Z czhang2718 Rarest Insects (IOI22_insects) C++17
96.07 / 100
71 ms 416 KB
#include "insects.h"
#include "bits/stdc++.h"
using namespace std;

int min_cardinality(int n) {
  vector<int> v(n);
  iota(v.begin(), v.end(), 0);
  int d=0;
  vector<bool> inside(n);
  for(int i=0; i<n; i++){
    move_inside(i);
    int c=press_button();
    if(c>1) move_outside(i);
    else d++, inside[i]=1;
  }
  if(d==1) return n;
  if(d==n) return 1;
  for(int i=0; i<n; i++){
    if(inside[i]) move_outside(i);
    inside[i]=0;
  }
  
  int ans=0;
  for(int k=31-__builtin_clz(n/d); k>=0; k--){
    if((ans+(1<<k))>n/d) continue;
    int cnt=0;
    for(int i=0; i<v.size(); i++){
      if(cnt==(1<<k)*d) break;
      move_inside(v[i]);
      int c=press_button();
      if(c>(1<<k)) move_outside(v[i]);
      else cnt++, inside[v[i]]=1;
    }
    vector<int> v2;
    if(cnt==(1<<k)*d){
      for(int x:v){
        if(!inside[x]) v2.push_back(x);
      }
      ans+=(1<<k);
    }
    else{
      for(int x:v){
        if(inside[x]) v2.push_back(x);
      }
    }
    for(int i:v){
      if(inside[i]) move_outside(i);
      inside[i]=0;
    }
    swap(v,v2);
  }
  return ans;
}
 

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:27:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for(int i=0; i<v.size(); i++){
      |                  ~^~~~~~~~~
# 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 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 5 ms 208 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 5 ms 208 KB Output is correct
12 Correct 6 ms 208 KB Output is correct
13 Correct 6 ms 208 KB Output is correct
14 Correct 6 ms 208 KB Output is correct
15 Correct 5 ms 208 KB Output is correct
16 Correct 6 ms 208 KB Output is correct
17 Correct 7 ms 208 KB Output is correct
18 Correct 6 ms 208 KB Output is correct
19 Correct 5 ms 208 KB Output is correct
20 Correct 6 ms 208 KB Output is correct
21 Correct 5 ms 208 KB Output is correct
22 Correct 3 ms 208 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 0 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 5 ms 208 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 5 ms 208 KB Output is correct
12 Correct 6 ms 208 KB Output is correct
13 Correct 6 ms 208 KB Output is correct
14 Correct 6 ms 208 KB Output is correct
15 Correct 5 ms 208 KB Output is correct
16 Correct 6 ms 208 KB Output is correct
17 Correct 7 ms 208 KB Output is correct
18 Correct 6 ms 208 KB Output is correct
19 Correct 5 ms 208 KB Output is correct
20 Correct 6 ms 208 KB Output is correct
21 Correct 5 ms 208 KB Output is correct
22 Correct 3 ms 208 KB Output is correct
23 Correct 9 ms 208 KB Output is correct
24 Correct 11 ms 208 KB Output is correct
25 Correct 16 ms 208 KB Output is correct
26 Correct 26 ms 280 KB Output is correct
27 Correct 16 ms 284 KB Output is correct
28 Correct 21 ms 208 KB Output is correct
29 Correct 21 ms 208 KB Output is correct
30 Correct 33 ms 208 KB Output is correct
31 Correct 24 ms 208 KB Output is correct
32 Correct 24 ms 208 KB Output is correct
33 Correct 26 ms 284 KB Output is correct
34 Correct 22 ms 288 KB Output is correct
35 Correct 23 ms 280 KB Output is correct
36 Correct 26 ms 208 KB Output is correct
37 Correct 18 ms 296 KB Output is correct
38 Correct 28 ms 208 KB Output is correct
39 Correct 27 ms 284 KB Output is correct
40 Correct 19 ms 284 KB Output is correct
41 Correct 18 ms 280 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 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 19 ms 208 KB Output is correct
8 Correct 20 ms 208 KB Output is correct
9 Correct 34 ms 292 KB Output is correct
10 Partially correct 37 ms 288 KB Output is partially correct
11 Correct 41 ms 288 KB Output is correct
12 Correct 55 ms 296 KB Output is correct
13 Partially correct 48 ms 292 KB Output is partially correct
14 Partially correct 66 ms 288 KB Output is partially correct
15 Correct 37 ms 288 KB Output is correct
16 Correct 39 ms 284 KB Output is correct
17 Correct 48 ms 284 KB Output is correct
18 Correct 44 ms 288 KB Output is correct
19 Partially correct 47 ms 288 KB Output is partially correct
20 Correct 41 ms 208 KB Output is correct
21 Partially correct 54 ms 284 KB Output is partially correct
22 Partially correct 32 ms 328 KB Output is partially correct
23 Partially correct 28 ms 292 KB Output is partially correct
24 Partially correct 55 ms 284 KB Output is partially correct
25 Correct 46 ms 288 KB Output is correct
26 Correct 37 ms 288 KB Output is correct
27 Correct 39 ms 284 KB Output is correct
28 Correct 37 ms 208 KB Output is correct
29 Correct 36 ms 288 KB Output is correct
30 Correct 38 ms 288 KB Output is correct
31 Partially correct 32 ms 400 KB Output is partially correct
32 Partially correct 58 ms 288 KB Output is partially correct
33 Partially correct 61 ms 300 KB Output is partially correct
34 Partially correct 69 ms 288 KB Output is partially correct
35 Correct 25 ms 300 KB Output is correct
36 Correct 30 ms 288 KB Output is correct
37 Partially correct 60 ms 284 KB Output is partially correct
38 Partially correct 71 ms 320 KB Output is partially correct
39 Correct 39 ms 288 KB Output is correct
40 Correct 37 ms 288 KB Output is correct
41 Correct 39 ms 284 KB Output is correct
42 Correct 33 ms 284 KB Output is correct
43 Correct 13 ms 208 KB Output is correct
44 Correct 34 ms 288 KB Output is correct
45 Correct 32 ms 288 KB Output is correct
46 Correct 35 ms 292 KB Output is correct
47 Correct 42 ms 292 KB Output is correct
48 Correct 39 ms 416 KB Output is correct