답안 #838718

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
838718 2023-08-27T16:00:10 Z taher 드문 곤충 (IOI22_insects) C++17
53.21 / 100
118 ms 424 KB
#include "insects.h"
#include <bits/stdc++.h>

using namespace std;

int min_cardinality(int N) {
  int n = N;
  vector<int> in(n);
  
  vector<int> roots;
  for (int i = 0; i < n; i++) {
    move_inside(i);
    if (press_button() == 2) {
      move_outside(i); 
    } else {
      roots.push_back(i);
      in[i] = true; 
    }
  }
  assert((int) roots.size() > 0);
  
  if ((int) roots.size() == 1) {
    return n; 
  }
  
  if ((int) roots.size() <= 4) {
    int res = 1234567;
    
    for (int i = 0; i < (int) roots.size(); i++) {
      move_outside(roots[i]); 
    }
    for (int it = 0; it < (int) roots.size(); it++) {
      move_inside(roots[it]);
      int cnt = 1;
      
      for (int j = 0; j < n; j++) {
        if (j == roots[it]) {
          continue; 
        }
        
        move_inside(j);
        if (press_button() == 2) {
          cnt++; 
        }
        move_outside(j);
      }
      
      res = min(res, cnt);
      move_outside(roots[it]); 
    }
    return res;  
  }  
  
  int base = (int) roots.size();
 
  auto Check = [&](int mid) {
    vector<int> tmp;
    for (int i = 0; i < n; i++) {
      if (in[i]) {
        continue; 
      }
      move_inside(i);
      if (press_button() > mid) {
        move_outside(i);
      } else {
        tmp.push_back(i);
        roots.push_back(i);
        in[i] = true;
      } 
    }
    if ((int) roots.size() == base * mid) {
      return true; 
    }
    for (int i = 0; i < (int) tmp.size(); i++) {
      roots.pop_back(); 
      in[tmp[i]] = false;
      move_outside(tmp[i]);
    }
    return false;
  };
  
  int low = 2;
  int high = n / (int) roots.size();
  
  while (low <= high) {
    int mid = low + (high - low) / 2;
    
    if (Check(mid)) {
      low = mid + 1;
    } else  {
      high = mid - 1; 
    } 
  }
  --low;
  return low;
}
# 결과 실행 시간 메모리 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 1 ms 208 KB Output is correct
5 Correct 1 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 296 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 7 ms 208 KB Output is correct
13 Correct 6 ms 208 KB Output is correct
14 Correct 3 ms 208 KB Output is correct
15 Correct 4 ms 208 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 5 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 4 ms 208 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 2 ms 336 KB Output is correct
# 결과 실행 시간 메모리 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 1 ms 208 KB Output is correct
5 Correct 1 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 296 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 7 ms 208 KB Output is correct
13 Correct 6 ms 208 KB Output is correct
14 Correct 3 ms 208 KB Output is correct
15 Correct 4 ms 208 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 5 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 4 ms 208 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 2 ms 336 KB Output is correct
23 Correct 8 ms 208 KB Output is correct
24 Correct 7 ms 208 KB Output is correct
25 Correct 19 ms 208 KB Output is correct
26 Correct 23 ms 304 KB Output is correct
27 Correct 21 ms 208 KB Output is correct
28 Correct 5 ms 208 KB Output is correct
29 Correct 34 ms 308 KB Output is correct
30 Correct 26 ms 304 KB Output is correct
31 Correct 21 ms 208 KB Output is correct
32 Correct 21 ms 300 KB Output is correct
33 Correct 24 ms 304 KB Output is correct
34 Correct 21 ms 292 KB Output is correct
35 Correct 17 ms 208 KB Output is correct
36 Correct 31 ms 284 KB Output is correct
37 Correct 29 ms 308 KB Output is correct
38 Correct 27 ms 308 KB Output is correct
39 Correct 15 ms 312 KB Output is correct
40 Correct 10 ms 208 KB Output is correct
41 Correct 7 ms 308 KB Output is correct
# 결과 실행 시간 메모리 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 1 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 11 ms 208 KB Output is correct
8 Correct 8 ms 344 KB Output is correct
9 Correct 34 ms 288 KB Output is correct
10 Partially correct 49 ms 300 KB Output is partially correct
11 Correct 39 ms 208 KB Output is correct
12 Correct 20 ms 308 KB Output is correct
13 Partially correct 118 ms 296 KB Output is partially correct
14 Partially correct 72 ms 288 KB Output is partially correct
15 Partially correct 29 ms 300 KB Output is partially correct
16 Partially correct 41 ms 416 KB Output is partially correct
17 Partially correct 40 ms 300 KB Output is partially correct
18 Partially correct 51 ms 424 KB Output is partially correct
19 Partially correct 49 ms 300 KB Output is partially correct
20 Partially correct 46 ms 300 KB Output is partially correct
21 Partially correct 45 ms 304 KB Output is partially correct
22 Partially correct 56 ms 288 KB Output is partially correct
23 Partially correct 47 ms 208 KB Output is partially correct
24 Correct 20 ms 308 KB Output is correct
25 Correct 20 ms 308 KB Output is correct
26 Correct 12 ms 208 KB Output is correct
27 Correct 45 ms 420 KB Output is correct
28 Correct 36 ms 320 KB Output is correct
29 Partially correct 39 ms 304 KB Output is partially correct
30 Partially correct 38 ms 288 KB Output is partially correct
31 Partially correct 57 ms 296 KB Output is partially correct
32 Partially correct 43 ms 288 KB Output is partially correct
33 Partially correct 64 ms 304 KB Output is partially correct
34 Partially correct 64 ms 288 KB Output is partially correct
35 Partially correct 44 ms 332 KB Output is partially correct
36 Partially correct 40 ms 284 KB Output is partially correct
37 Partially correct 53 ms 292 KB Output is partially correct
38 Partially correct 56 ms 308 KB Output is partially correct
39 Correct 36 ms 288 KB Output is correct
40 Correct 36 ms 288 KB Output is correct
41 Partially correct 22 ms 308 KB Output is partially correct
42 Partially correct 44 ms 420 KB Output is partially correct
43 Partially correct 27 ms 208 KB Output is partially correct
44 Partially correct 105 ms 208 KB Output is partially correct
45 Correct 24 ms 208 KB Output is correct
46 Correct 21 ms 208 KB Output is correct
47 Correct 17 ms 308 KB Output is correct
48 Correct 11 ms 208 KB Output is correct