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Submission #627766

# Submission time Handle Problem Language Result Execution time Memory
627766 2022-08-12T22:36:39 Z Fischer Rarest Insects (IOI22_insects) C++17
25 / 100
 377 ms 420 KB 
#include <bits/stdc++.h>
#include "insects.h"
using namespace std;

const int maxn = 2010;
bool in[maxn];

pair<bool, int> p(int x, int N) {
  for (int i = 0; i < N; ++i) {
    move_inside(i);
    in[i] = 1;
    if (press_button() > x) {
      move_outside(i);
      in[i] = 0;
    }
  }

  for (int i = 0; i < N; ++i) {
    if (in[i]) {
      move_outside(i);
    }
  }

  int cnt = 0, bad = 0;
  for (int i = 0; i < N; ++i) {
    if (in[i]) {
      move_inside(i);
      if (press_button() >= x) {
        move_outside(i);
        in[i] = 0;
        bad += 1;
      }
      cnt += 1;
    }
  }

  for (int i = 0; i < N; ++i) {
    if (in[i]) {
      move_outside(i);
      in[i] = 0;
    }
  }

  return {cnt == bad * x, bad};
}

int min_cardinality(int N) {

  pair<bool, int> temp;
  int lo = 1, hi = N;//min(N, 1000);
  while (lo < hi) {
    int mid = (lo + hi + 1) / 2;
    if ((temp = p(mid, N)).first) lo = mid;
    else hi = mid-1;
  }

  //if (lo == 1000 && temp.second == 1) return N;
  return lo;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 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 24 ms 208 KB Output is correct
7 Correct 24 ms 208 KB Output is correct
8 Correct 24 ms 208 KB Output is correct
9 Correct 19 ms 208 KB Output is correct
10 Correct 14 ms 208 KB Output is correct
11 Correct 17 ms 208 KB Output is correct
12 Correct 20 ms 208 KB Output is correct
13 Correct 12 ms 208 KB Output is correct
14 Correct 22 ms 208 KB Output is correct
15 Correct 26 ms 208 KB Output is correct
16 Correct 21 ms 208 KB Output is correct
17 Correct 17 ms 208 KB Output is correct
18 Correct 25 ms 208 KB Output is correct
19 Correct 23 ms 208 KB Output is correct
20 Correct 20 ms 208 KB Output is correct
21 Correct 26 ms 208 KB Output is correct
22 Correct 27 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 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 24 ms 208 KB Output is correct
7 Correct 24 ms 208 KB Output is correct
8 Correct 24 ms 208 KB Output is correct
9 Correct 19 ms 208 KB Output is correct
10 Correct 14 ms 208 KB Output is correct
11 Correct 17 ms 208 KB Output is correct
12 Correct 20 ms 208 KB Output is correct
13 Correct 12 ms 208 KB Output is correct
14 Correct 22 ms 208 KB Output is correct
15 Correct 26 ms 208 KB Output is correct
16 Correct 21 ms 208 KB Output is correct
17 Correct 17 ms 208 KB Output is correct
18 Correct 25 ms 208 KB Output is correct
19 Correct 23 ms 208 KB Output is correct
20 Correct 20 ms 208 KB Output is correct
21 Correct 26 ms 208 KB Output is correct
22 Correct 27 ms 208 KB Output is correct
23 Correct 179 ms 208 KB Output is correct
24 Correct 156 ms 320 KB Output is correct
25 Correct 153 ms 208 KB Output is correct
26 Correct 122 ms 208 KB Output is correct
27 Correct 82 ms 208 KB Output is correct
28 Correct 59 ms 280 KB Output is correct
29 Correct 122 ms 208 KB Output is correct
30 Correct 105 ms 208 KB Output is correct
31 Correct 157 ms 208 KB Output is correct
32 Correct 175 ms 208 KB Output is correct
33 Correct 135 ms 328 KB Output is correct
34 Correct 129 ms 284 KB Output is correct
35 Correct 151 ms 208 KB Output is correct
36 Correct 161 ms 208 KB Output is correct
37 Correct 99 ms 284 KB Output is correct
38 Correct 173 ms 208 KB Output is correct
39 Correct 146 ms 208 KB Output is correct
40 Correct 136 ms 208 KB Output is correct
41 Correct 173 ms 208 KB Output is correct

Subtask #3
0 / 75.0

# 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 1 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Partially correct 1 ms 208 KB Output is partially correct
6 Partially correct 1 ms 208 KB Output is partially correct
7 Incorrect 377 ms 420 KB Too many queries.
8 Halted 0 ms 0 KB -