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Submission #726658

# Submission time Handle Problem Language Result Execution time Memory
726658 2023-04-19T08:29:30 Z Mamedov Rarest Insects (IOI22_insects) C++17
100 / 100
 59 ms 412 KB 
#include "insects.h"
#pragma GCC optimize ("O3")
#include <bits/stdc++.h>
#define pii pair<int, int>
#define piii pair<pii, int>
#define vi vector<int>
#define vll vector<ll>
#define vvi vector<vi>
#define vpii vector<pii>
#define vvpii vector<vpii>
#define f first
#define s second
#define oo 1000000001
#define eb emplace_back
#define pb push_back
#define mpr make_pair
#define size(v) (int)v.size()
#define ln '\n'
#define ull unsigned long long
#define ll long long
#define all(v) v.begin(), v.end()

using namespace std;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int min_cardinality(int N) {
  vector<bool>inside(N, false);
  vector<bool>fixed(N, false);
  vi machine;

  for (int i = 0; i < N; ++i) {
    move_inside(i);
    if (press_button() == 2) {
      move_outside(i);
    } else {
      inside[i] = fixed[i] = true;
      machine.eb(i);
    }
  }

  int uni = size(machine);
  int l = 1, r = N / uni;

  vi p(N);
  for (int i = 0; i < N; ++i) {
    p[i] = i;
  }
  shuffle(all(p), rng);

  while (l < r) {
    int mid = (l + r + 1) >> 1;
    for (int i : p) {
      if (uni * mid == size(machine)) break;
      if (!fixed[i]) {
        move_inside(i);
        if (press_button() > mid) {
          move_outside(i);
        } else {
          inside[i] = true;
          machine.eb(i);
        }
      }
    }
    if (uni * mid == size(machine)) {
      l = mid;
      for (int i = 0; i < N; ++i) {
        if (inside[i]) fixed[i] = true;
      }
    } else {
      r = mid - 1;
      for (int i = 0; i < N; ++i) {
        if (!inside[i]) {
          fixed[i] = true;
        } else if (!fixed[i]) {
          move_outside(i);
          inside[i] = false;
          machine.pop_back();
        }
      }
    }
  }
  return l;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory 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 4 ms 304 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 7 ms 208 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 6 ms 208 KB Output is correct
13 Correct 4 ms 208 KB Output is correct
14 Correct 6 ms 208 KB Output is correct
15 Correct 5 ms 308 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 6 ms 304 KB Output is correct
18 Correct 6 ms 208 KB Output is correct
19 Correct 4 ms 308 KB Output is correct
20 Correct 5 ms 208 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 3 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 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 4 ms 304 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 7 ms 208 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 6 ms 208 KB Output is correct
13 Correct 4 ms 208 KB Output is correct
14 Correct 6 ms 208 KB Output is correct
15 Correct 5 ms 308 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 6 ms 304 KB Output is correct
18 Correct 6 ms 208 KB Output is correct
19 Correct 4 ms 308 KB Output is correct
20 Correct 5 ms 208 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 3 ms 208 KB Output is correct
23 Correct 16 ms 292 KB Output is correct
24 Correct 9 ms 308 KB Output is correct
25 Correct 20 ms 208 KB Output is correct
26 Correct 27 ms 208 KB Output is correct
27 Correct 28 ms 296 KB Output is correct
28 Correct 15 ms 208 KB Output is correct
29 Correct 23 ms 208 KB Output is correct
30 Correct 22 ms 208 KB Output is correct
31 Correct 19 ms 308 KB Output is correct
32 Correct 13 ms 300 KB Output is correct
33 Correct 27 ms 280 KB Output is correct
34 Correct 25 ms 208 KB Output is correct
35 Correct 23 ms 300 KB Output is correct
36 Correct 22 ms 292 KB Output is correct
37 Correct 19 ms 296 KB Output is correct
38 Correct 27 ms 208 KB Output is correct
39 Correct 16 ms 208 KB Output is correct
40 Correct 17 ms 336 KB Output is correct
41 Correct 5 ms 208 KB Output is correct

Subtask #3
75.0 / 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 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 40 ms 300 KB Output is correct
8 Correct 21 ms 296 KB Output is correct
9 Correct 47 ms 280 KB Output is correct
10 Correct 51 ms 208 KB Output is correct
11 Correct 42 ms 280 KB Output is correct
12 Correct 25 ms 208 KB Output is correct
13 Correct 58 ms 280 KB Output is correct
14 Correct 51 ms 296 KB Output is correct
15 Correct 39 ms 292 KB Output is correct
16 Correct 38 ms 280 KB Output is correct
17 Correct 39 ms 296 KB Output is correct
18 Correct 42 ms 300 KB Output is correct
19 Correct 33 ms 284 KB Output is correct
20 Correct 38 ms 296 KB Output is correct
21 Correct 23 ms 304 KB Output is correct
22 Correct 59 ms 300 KB Output is correct
23 Correct 40 ms 208 KB Output is correct
24 Correct 22 ms 208 KB Output is correct
25 Correct 23 ms 308 KB Output is correct
26 Correct 17 ms 304 KB Output is correct
27 Correct 20 ms 208 KB Output is correct
28 Correct 47 ms 292 KB Output is correct
29 Correct 44 ms 288 KB Output is correct
30 Correct 49 ms 300 KB Output is correct
31 Correct 56 ms 208 KB Output is correct
32 Correct 49 ms 300 KB Output is correct
33 Correct 57 ms 296 KB Output is correct
34 Correct 40 ms 296 KB Output is correct
35 Correct 46 ms 288 KB Output is correct
36 Correct 43 ms 292 KB Output is correct
37 Correct 53 ms 292 KB Output is correct
38 Correct 49 ms 208 KB Output is correct
39 Correct 41 ms 412 KB Output is correct
40 Correct 44 ms 208 KB Output is correct
41 Correct 37 ms 300 KB Output is correct
42 Correct 39 ms 288 KB Output is correct
43 Correct 14 ms 208 KB Output is correct
44 Correct 44 ms 284 KB Output is correct
45 Correct 41 ms 288 KB Output is correct
46 Correct 31 ms 304 KB Output is correct
47 Correct 33 ms 304 KB Output is correct
48 Correct 21 ms 304 KB Output is correct