oj.uz

Submission #982136

# Submission time Handle Problem Language Result Execution time Memory
982136 2024-05-13T23:52:50 Z vjudge1 Rarest Insects (IOI22_insects) C++17
100 / 100
 37 ms 1112 KB 
//viewed solution
#include "insects.h"
#include<bits/stdc++.h>
using namespace std;
mt19937 rng(random_device{}());
vector<int>ins,notin,notin2;
int types,init=0;
bool check(int mid){
  ins.clear();
  notin2.clear();
  shuffle(notin.begin(),notin.end(),rng);
  for(auto i:notin){
    if(init==mid*types) {
      notin2.push_back(i);
      continue;
    }
    move_inside(i);
    if(press_button()>mid)
      move_outside(i),
      notin2.push_back(i);
    else init++,ins.push_back(i);
  }
  return init==mid*types;
}
int min_cardinality(int N) {
  for(int i=0;i<N;i++){
    move_inside(i);
    int val=press_button();
    if(val-1)
      notin.push_back(i),
      move_outside(i);
    else types++;
  }
  if(types==1)
    return N;
  int l=1,r=N/types;
  init=types;
  while(l<r){
    int mid=l+r+1>>1;
    if(check(mid)){
      notin=notin2;
      l=mid;
    } else {
      r=mid-1;
      for(auto i:ins)
        move_outside(i),init--;
      vector<int>bad(N),neni;
      for(auto i:notin2)
        bad[i]=1;
      for(auto i:notin)
        if(!bad[i])
          neni.push_back(i);
      notin=neni;
    }
  }
  return l;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:39:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   39 |     int mid=l+r+1>>1;
      |             ~~~^~

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 1 ms 344 KB Output is correct
7 Correct 1 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 2 ms 596 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 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 432 KB Output is correct
18 Correct 2 ms 344 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 2 ms 852 KB Output is correct
22 Correct 1 ms 344 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 1 ms 344 KB Output is correct
7 Correct 1 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 2 ms 596 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 344 KB Output is correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 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 432 KB Output is correct
18 Correct 2 ms 344 KB Output is correct
19 Correct 3 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 2 ms 852 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 6 ms 600 KB Output is correct
24 Correct 5 ms 344 KB Output is correct
25 Correct 11 ms 344 KB Output is correct
26 Correct 16 ms 604 KB Output is correct
27 Correct 13 ms 600 KB Output is correct
28 Correct 4 ms 600 KB Output is correct
29 Correct 12 ms 856 KB Output is correct
30 Correct 13 ms 604 KB Output is correct
31 Correct 12 ms 448 KB Output is correct
32 Correct 9 ms 600 KB Output is correct
33 Correct 10 ms 1112 KB Output is correct
34 Correct 12 ms 600 KB Output is correct
35 Correct 11 ms 856 KB Output is correct
36 Correct 15 ms 856 KB Output is correct
37 Correct 12 ms 448 KB Output is correct
38 Correct 10 ms 448 KB Output is correct
39 Correct 9 ms 1112 KB Output is correct
40 Correct 6 ms 948 KB Output is correct
41 Correct 4 ms 600 KB Output is correct

Subtask #3
75.0 / 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 Correct 0 ms 344 KB Output is correct
7 Correct 11 ms 856 KB Output is correct
8 Correct 9 ms 344 KB Output is correct
9 Correct 29 ms 704 KB Output is correct
10 Correct 37 ms 600 KB Output is correct
11 Correct 20 ms 604 KB Output is correct
12 Correct 16 ms 1112 KB Output is correct
13 Correct 29 ms 1112 KB Output is correct
14 Correct 26 ms 696 KB Output is correct
15 Correct 21 ms 676 KB Output is correct
16 Correct 20 ms 600 KB Output is correct
17 Correct 20 ms 704 KB Output is correct
18 Correct 22 ms 1112 KB Output is correct
19 Correct 26 ms 848 KB Output is correct
20 Correct 26 ms 860 KB Output is correct
21 Correct 25 ms 852 KB Output is correct
22 Correct 31 ms 596 KB Output is correct
23 Correct 27 ms 448 KB Output is correct
24 Correct 23 ms 700 KB Output is correct
25 Correct 15 ms 700 KB Output is correct
26 Correct 9 ms 440 KB Output is correct
27 Correct 20 ms 600 KB Output is correct
28 Correct 24 ms 600 KB Output is correct
29 Correct 23 ms 868 KB Output is correct
30 Correct 22 ms 1108 KB Output is correct
31 Correct 26 ms 696 KB Output is correct
32 Correct 31 ms 704 KB Output is correct
33 Correct 25 ms 696 KB Output is correct
34 Correct 27 ms 596 KB Output is correct
35 Correct 23 ms 704 KB Output is correct
36 Correct 21 ms 692 KB Output is correct
37 Correct 24 ms 856 KB Output is correct
38 Correct 26 ms 856 KB Output is correct
39 Correct 24 ms 700 KB Output is correct
40 Correct 20 ms 600 KB Output is correct
41 Correct 25 ms 860 KB Output is correct
42 Correct 28 ms 1020 KB Output is correct
43 Correct 7 ms 700 KB Output is correct
44 Correct 17 ms 1112 KB Output is correct
45 Correct 17 ms 932 KB Output is correct
46 Correct 14 ms 952 KB Output is correct
47 Correct 14 ms 684 KB Output is correct
48 Correct 17 ms 600 KB Output is correct