oj.uz

Submission #629323

# Submission time Handle Problem Language Result Execution time Memory
629323 2022-08-14T11:21:19 Z jakubd Rarest Insects (IOI22_insects) C++17
100 / 100
 252 ms 45296 KB 
#include "insects.h"

#include <bits/stdc++.h>

using namespace std;

int N;
vector<int> where, lastWhere;

void _move_inside(int x) {
  where[x] = 1;
}

void _move_outside(int x) {
  where[x] = 0;
}

map<vector<int>, int> memo;
int _press_button() {
  if (memo.count(where)) return memo[where];
  for (int i = 0; i < N; i++) {
    if (where[i] == lastWhere[i]) continue;
    if (where[i]) move_inside(i);
    else move_outside(i);
  }
  lastWhere = where;
  return memo[where] = press_button();
}

int min_cardinality(int n) {
  N = n;
  int D = 0;
  where.resize(N), lastWhere.resize(N);
  vector<int> can, in, out;

  for (int i = 0; i < N; i++) {
    _move_inside(i);
    if (_press_button() == 2) {
      _move_outside(i);
      out.push_back(i);
    } else {
      D++;
      in.push_back(i);
    }
  }
  can = out;

  int l = 2, r = N / D, ans = 1, cnt = D;
  while (l <= r) {
    int m = (l + r + 1) / 2;

    in.resize(0), out.resize(0);
    for (int i : can) {
      if (cnt == D * m) {
        out.push_back(i);
        continue;
      }

      _move_inside(i);
      if (_press_button() > m) {
        _move_outside(i);
        out.push_back(i);
      } else {
        in.push_back(i);
        cnt++;
      }
    }

    if (cnt == D * m) {
      l = m + 1;
      ans = m;
      can = out;
    } else {
      r = m - 1;
      can = in;
      for (auto x : can) {
        _move_outside(x);
        cnt--;
      }
    }
  }

  return ans;
}

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 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 3 ms 552 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 7 ms 680 KB Output is correct
9 Correct 8 ms 720 KB Output is correct
10 Correct 5 ms 588 KB Output is correct
11 Correct 3 ms 464 KB Output is correct
12 Correct 7 ms 692 KB Output is correct
13 Correct 6 ms 720 KB Output is correct
14 Correct 7 ms 600 KB Output is correct
15 Correct 6 ms 592 KB Output is correct
16 Correct 8 ms 704 KB Output is correct
17 Correct 6 ms 720 KB Output is correct
18 Correct 8 ms 644 KB Output is correct
19 Correct 7 ms 664 KB Output is correct
20 Correct 5 ms 648 KB Output is correct
21 Correct 5 ms 464 KB Output is correct
22 Correct 3 ms 464 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 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 3 ms 552 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 7 ms 680 KB Output is correct
9 Correct 8 ms 720 KB Output is correct
10 Correct 5 ms 588 KB Output is correct
11 Correct 3 ms 464 KB Output is correct
12 Correct 7 ms 692 KB Output is correct
13 Correct 6 ms 720 KB Output is correct
14 Correct 7 ms 600 KB Output is correct
15 Correct 6 ms 592 KB Output is correct
16 Correct 8 ms 704 KB Output is correct
17 Correct 6 ms 720 KB Output is correct
18 Correct 8 ms 644 KB Output is correct
19 Correct 7 ms 664 KB Output is correct
20 Correct 5 ms 648 KB Output is correct
21 Correct 5 ms 464 KB Output is correct
22 Correct 3 ms 464 KB Output is correct
23 Correct 59 ms 8280 KB Output is correct
24 Correct 25 ms 4204 KB Output is correct
25 Correct 56 ms 9544 KB Output is correct
26 Correct 59 ms 11256 KB Output is correct
27 Correct 46 ms 9140 KB Output is correct
28 Correct 21 ms 4160 KB Output is correct
29 Correct 106 ms 10020 KB Output is correct
30 Correct 55 ms 10936 KB Output is correct
31 Correct 55 ms 9392 KB Output is correct
32 Correct 64 ms 9704 KB Output is correct
33 Correct 70 ms 10792 KB Output is correct
34 Correct 61 ms 9840 KB Output is correct
35 Correct 58 ms 9708 KB Output is correct
36 Correct 64 ms 10164 KB Output is correct
37 Correct 67 ms 11212 KB Output is correct
38 Correct 63 ms 10820 KB Output is correct
39 Correct 59 ms 10720 KB Output is correct
40 Correct 37 ms 6428 KB Output is correct
41 Correct 31 ms 4248 KB Output is correct

Subtask #3
75.0 / 75.0

# 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 0 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 146 ms 31972 KB Output is correct
8 Correct 82 ms 16236 KB Output is correct
9 Correct 188 ms 37280 KB Output is correct
10 Correct 206 ms 42660 KB Output is correct
11 Correct 158 ms 35848 KB Output is correct
12 Correct 114 ms 23976 KB Output is correct
13 Correct 194 ms 39336 KB Output is correct
14 Correct 226 ms 44012 KB Output is correct
15 Correct 175 ms 35120 KB Output is correct
16 Correct 187 ms 36544 KB Output is correct
17 Correct 189 ms 36596 KB Output is correct
18 Correct 171 ms 39268 KB Output is correct
19 Correct 178 ms 38596 KB Output is correct
20 Correct 196 ms 39912 KB Output is correct
21 Correct 229 ms 44932 KB Output is correct
22 Correct 250 ms 42948 KB Output is correct
23 Correct 204 ms 45296 KB Output is correct
24 Correct 183 ms 34584 KB Output is correct
25 Correct 146 ms 24848 KB Output is correct
26 Correct 85 ms 16080 KB Output is correct
27 Correct 227 ms 44712 KB Output is correct
28 Correct 124 ms 30664 KB Output is correct
29 Correct 247 ms 45180 KB Output is correct
30 Correct 239 ms 45204 KB Output is correct
31 Correct 221 ms 41088 KB Output is correct
32 Correct 210 ms 43196 KB Output is correct
33 Correct 187 ms 38012 KB Output is correct
34 Correct 179 ms 37120 KB Output is correct
35 Correct 224 ms 43900 KB Output is correct
36 Correct 176 ms 37572 KB Output is correct
37 Correct 205 ms 41368 KB Output is correct
38 Correct 214 ms 41164 KB Output is correct
39 Correct 252 ms 43816 KB Output is correct
40 Correct 172 ms 30160 KB Output is correct
41 Correct 233 ms 38384 KB Output is correct
42 Correct 237 ms 45256 KB Output is correct
43 Correct 22 ms 3084 KB Output is correct
44 Correct 140 ms 31500 KB Output is correct
45 Correct 170 ms 32320 KB Output is correct
46 Correct 105 ms 24060 KB Output is correct
47 Correct 175 ms 23972 KB Output is correct
48 Correct 117 ms 24152 KB Output is correct