oj.uz

답안 #837480

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
837480 2023-08-25T11:16:22 Z erekle 드문 곤충 (IOI22_insects) C++17
98.88 / 100
 53 ms 272 KB 
#include "insects.h"
#include <vector>

using namespace std;

int cnt = 0;
vector<bool> inside;
void in(int i) {
  if (!inside[i]) {
    ++cnt;
    move_inside(i);
    inside[i] = true;
  }
}
void out(int i) {
  if (inside[i]) {
    --cnt;
    move_outside(i);
    inside[i] = false;
  }
}

int min_cardinality(int N) {
  inside.resize(N);
  vector<bool> defInside(N), defOutside(N);
  for (int i = 0; i < N; ++i) {
    in(i);
    if (press_button() > 1) out(i);
    else defInside[i] = true;
  }

  int m = cnt;
  if (m == 1) return N;
  int left = 1, right = 1 + N/m;
  while (left+1 < right) {
    int k;
    if (m >= 100) k = (60*left + 40*right) / 100;
    else if (k >= 50) k = (left + right) / 2;
    else k = (40*left + 60*right) / 100;
    if (k == left) ++k;
    else if (k == right) --k;
    for (int i = 0; i < N; ++i) {
      if (!defInside[i] && !defOutside[i] && inside[i]) out(i);
    }
    for (int i = 0; i < N && cnt < k*m; ++i) {
      if (!defInside[i] && !defOutside[i]) {
        in(i);
        if (press_button() > k) out(i);
      }
    }
    bool atLeastK = cnt == k * m;
    for (int i = 0; i < N; ++i) {
      if (!defInside[i] && !defOutside[i]) {
        if (atLeastK) {
          if (inside[i]) defInside[i] = true;
        } else {
          if (!inside[i]) defOutside[i] = true;
        }
      }
    }
    if (atLeastK) left = k;
    else right = k;
  }
  return left;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:38:10: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized]
   38 |     else if (k >= 50) k = (left + right) / 2;
      |          ^~

Subtask #1
10.0 / 10.0

# 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 1 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 3 ms 208 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 5 ms 208 KB Output is correct
13 Correct 5 ms 208 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 3 ms 208 KB Output is correct
16 Correct 5 ms 208 KB Output is correct
17 Correct 5 ms 208 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 5 ms 208 KB Output is correct
20 Correct 3 ms 208 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 2 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# 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 1 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 3 ms 208 KB Output is correct
9 Correct 4 ms 208 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 5 ms 208 KB Output is correct
13 Correct 5 ms 208 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 3 ms 208 KB Output is correct
16 Correct 5 ms 208 KB Output is correct
17 Correct 5 ms 208 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 5 ms 208 KB Output is correct
20 Correct 3 ms 208 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 2 ms 208 KB Output is correct
23 Correct 9 ms 208 KB Output is correct
24 Correct 9 ms 208 KB Output is correct
25 Correct 23 ms 208 KB Output is correct
26 Correct 21 ms 208 KB Output is correct
27 Correct 25 ms 208 KB Output is correct
28 Correct 7 ms 208 KB Output is correct
29 Correct 19 ms 208 KB Output is correct
30 Correct 21 ms 208 KB Output is correct
31 Correct 16 ms 208 KB Output is correct
32 Correct 21 ms 208 KB Output is correct
33 Correct 22 ms 208 KB Output is correct
34 Correct 13 ms 208 KB Output is correct
35 Correct 19 ms 208 KB Output is correct
36 Correct 17 ms 208 KB Output is correct
37 Correct 15 ms 208 KB Output is correct
38 Correct 19 ms 208 KB Output is correct
39 Correct 16 ms 208 KB Output is correct
40 Correct 13 ms 208 KB Output is correct
41 Correct 9 ms 208 KB Output is correct

Subtask #3
73.88 / 75.0

# 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 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 13 ms 208 KB Output is correct
8 Correct 19 ms 208 KB Output is correct
9 Correct 34 ms 208 KB Output is correct
10 Correct 51 ms 268 KB Output is correct
11 Correct 40 ms 208 KB Output is correct
12 Correct 22 ms 208 KB Output is correct
13 Correct 34 ms 208 KB Output is correct
14 Partially correct 35 ms 264 KB Output is partially correct
15 Correct 35 ms 208 KB Output is correct
16 Correct 32 ms 208 KB Output is correct
17 Correct 27 ms 208 KB Output is correct
18 Correct 17 ms 208 KB Output is correct
19 Correct 30 ms 208 KB Output is correct
20 Correct 42 ms 208 KB Output is correct
21 Correct 37 ms 208 KB Output is correct
22 Correct 32 ms 208 KB Output is correct
23 Correct 38 ms 208 KB Output is correct
24 Correct 22 ms 208 KB Output is correct
25 Correct 22 ms 208 KB Output is correct
26 Correct 15 ms 208 KB Output is correct
27 Correct 34 ms 208 KB Output is correct
28 Correct 30 ms 208 KB Output is correct
29 Correct 39 ms 208 KB Output is correct
30 Correct 36 ms 208 KB Output is correct
31 Correct 49 ms 268 KB Output is correct
32 Correct 38 ms 208 KB Output is correct
33 Correct 40 ms 208 KB Output is correct
34 Correct 32 ms 208 KB Output is correct
35 Correct 34 ms 208 KB Output is correct
36 Correct 29 ms 208 KB Output is correct
37 Correct 41 ms 264 KB Output is correct
38 Correct 47 ms 272 KB Output is correct
39 Correct 53 ms 208 KB Output is correct
40 Correct 31 ms 208 KB Output is correct
41 Correct 35 ms 208 KB Output is correct
42 Correct 34 ms 208 KB Output is correct
43 Correct 13 ms 208 KB Output is correct
44 Correct 34 ms 208 KB Output is correct
45 Correct 27 ms 208 KB Output is correct
46 Correct 24 ms 208 KB Output is correct
47 Correct 19 ms 208 KB Output is correct
48 Correct 24 ms 208 KB Output is correct