Submission #944700

# Submission time Handle Problem Language Result Execution time Memory
944700 2024-03-13T04:01:05 Z nguyentunglam Rarest Insects (IOI22_insects) C++17
99.89 / 100
45 ms 1112 KB
#include "insects.h"
#include<bits/stdc++.h>
using namespace std;

const int NN = 1e5 + 10;

bool in[NN];

int min_cardinality(int n) {
  int type = 0;
  vector<int> candidate;
  for(int i = 0; i < n; i++) {
    move_inside(i);
    if (press_button() == 1) {
      ++type;
      in[i] = 1;
    }
    else {
      move_outside(i);
      candidate.push_back(i);
    }
  }

  int l = 2, r = n / type, ans = 1;
  int cur = 1;

  while (l <= r) {
    int mid = (l + r) / 2;
    assert(cur <= mid);
    int last = cur;
    for(auto &i : candidate) {
      move_inside(i);
      int nxt = press_button();
      if (nxt > mid) {
        move_outside(i);
        in[i] = 0;
      }
      else {
        cur = nxt;
        in[i] = 1;
      }
    }
    int total = 0;
    for(int i = 0; i < n; i++) total += in[i];
    vector<int> _candidate;

    if (cur == mid && mid * type == total) {
      for(auto &i : candidate) if (!in[i]) _candidate.push_back(i);
      l = mid + 1;
      ans = mid;
    }
    else {
      for(auto &i : candidate) if (in[i]) {
        _candidate.push_back(i);
        move_outside(i);
        in[i] = 0;
      }
      r = mid - 1;
      cur = last;
    }
    candidate = _candidate;
  }
  return ans;
}
# 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 2 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 448 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Correct 3 ms 600 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 600 KB Output is correct
13 Correct 3 ms 600 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 2 ms 600 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 3 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
# 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 2 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 2 ms 448 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Correct 3 ms 600 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 2 ms 600 KB Output is correct
13 Correct 3 ms 600 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 3 ms 344 KB Output is correct
16 Correct 2 ms 344 KB Output is correct
17 Correct 3 ms 344 KB Output is correct
18 Correct 2 ms 600 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 2 ms 344 KB Output is correct
21 Correct 3 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 18 ms 856 KB Output is correct
24 Correct 4 ms 344 KB Output is correct
25 Correct 12 ms 600 KB Output is correct
26 Correct 11 ms 600 KB Output is correct
27 Correct 13 ms 600 KB Output is correct
28 Correct 5 ms 600 KB Output is correct
29 Correct 15 ms 856 KB Output is correct
30 Correct 10 ms 600 KB Output is correct
31 Correct 14 ms 600 KB Output is correct
32 Correct 12 ms 600 KB Output is correct
33 Correct 11 ms 340 KB Output is correct
34 Correct 14 ms 344 KB Output is correct
35 Correct 11 ms 600 KB Output is correct
36 Correct 13 ms 600 KB Output is correct
37 Correct 12 ms 600 KB Output is correct
38 Correct 9 ms 600 KB Output is correct
39 Correct 9 ms 600 KB Output is correct
40 Correct 6 ms 600 KB Output is correct
41 Correct 4 ms 600 KB Output is correct
# 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 1 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 27 ms 704 KB Output is correct
8 Correct 11 ms 344 KB Output is correct
9 Correct 31 ms 856 KB Output is correct
10 Correct 22 ms 344 KB Output is correct
11 Correct 26 ms 608 KB Output is correct
12 Correct 14 ms 344 KB Output is correct
13 Correct 28 ms 856 KB Output is correct
14 Correct 23 ms 704 KB Output is correct
15 Correct 25 ms 600 KB Output is correct
16 Correct 38 ms 860 KB Output is correct
17 Correct 33 ms 608 KB Output is correct
18 Correct 33 ms 952 KB Output is correct
19 Partially correct 35 ms 852 KB Output is partially correct
20 Correct 38 ms 600 KB Output is correct
21 Correct 25 ms 856 KB Output is correct
22 Correct 38 ms 600 KB Output is correct
23 Correct 25 ms 600 KB Output is correct
24 Correct 24 ms 860 KB Output is correct
25 Correct 12 ms 860 KB Output is correct
26 Correct 13 ms 600 KB Output is correct
27 Correct 39 ms 600 KB Output is correct
28 Correct 27 ms 600 KB Output is correct
29 Partially correct 26 ms 1112 KB Output is partially correct
30 Partially correct 30 ms 856 KB Output is partially correct
31 Correct 26 ms 592 KB Output is correct
32 Correct 33 ms 700 KB Output is correct
33 Correct 26 ms 608 KB Output is correct
34 Correct 25 ms 600 KB Output is correct
35 Partially correct 45 ms 600 KB Output is partially correct
36 Partially correct 33 ms 860 KB Output is partially correct
37 Correct 24 ms 860 KB Output is correct
38 Correct 26 ms 856 KB Output is correct
39 Correct 26 ms 856 KB Output is correct
40 Correct 35 ms 696 KB Output is correct
41 Partially correct 33 ms 856 KB Output is partially correct
42 Partially correct 27 ms 1112 KB Output is partially correct
43 Correct 6 ms 856 KB Output is correct
44 Correct 21 ms 856 KB Output is correct
45 Correct 39 ms 1112 KB Output is correct
46 Correct 17 ms 600 KB Output is correct
47 Correct 14 ms 600 KB Output is correct
48 Correct 15 ms 344 KB Output is correct