oj.uz

Submission #828524

# Submission time Handle Problem Language Result Execution time Memory
828524 2023-08-17T10:47:14 Z erray Counting Mushrooms (IOI20_mushrooms) C++17
92.623 / 100
 8 ms 444 KB 
#include "mushrooms.h"
#include <bits/stdc++.h>

using namespace std;

#ifdef DEBUG
  #include "/home/eagle/ioi20/d2/debug.h"
#else 
  #define debug(...) void(37)
#endif

const int K = 72;
int count_mushrooms(int N) {
  debug(N);
  array<vector<int>, 2> sets;
  sets[0].push_back(0);
  int next = 1;
  while (max(sets[0].size(), sets[1].size()) < K && next < N) {
    int use = (sets[0].size() > sets[1].size() ? 0 : 1);
    if (int(sets[use].size()) == 1 || next + 1 == N) {
      sets[use ^ (use_machine({sets[use][0], next}))].push_back(next);
      ++next;
    } else {
      int res = use_machine({sets[use][0], next, sets[use][1], next + 1}); //bounds
      sets[use ^ (res / 2)].push_back(next);
      sets[use ^ (res % 2)].push_back(next + 1);
      next += 2;
    }
  }
  debug(sets);
  array<int, 2> ct{};
  ct[0] = int(sets[0].size());
  while (next < N) {
    debug(sets);
    int use = (sets[0].size() > sets[1].size() ? 0 : 1);
    int s = int(sets[use].size());
    int r = min(N, (next + s));
    int tot = r - next;
    vector<int> ask;
    for (int i = 0; i < tot; ++i) {
      ask.push_back(next + i);
      ask.push_back(sets[use][i]);
    }
    int res = use_machine(ask);
    debug(use, sets[use], ask, res, tot);
    int diff = (1 + res) / 2;
    ct[use ^ 1] += diff;
    ct[use] += tot - diff;
    sets[use ^ (res % 2)].push_back(next);
    next = r;
  }
  debug(sets, ct);
  return ct[0];
}

Subtask #1
92.623 / 100.0

# 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 1 ms 208 KB Output is correct
7 Correct 5 ms 208 KB Output is correct
8 Correct 6 ms 208 KB Output is correct
9 Correct 6 ms 304 KB Output is correct
10 Correct 7 ms 444 KB Output is correct
11 Partially correct 6 ms 308 KB Output is partially correct
12 Correct 5 ms 336 KB Output is correct
13 Correct 5 ms 332 KB Output is correct
14 Correct 2 ms 328 KB Output is correct
15 Partially correct 5 ms 336 KB Output is partially correct
16 Partially correct 5 ms 316 KB Output is partially correct
17 Correct 3 ms 324 KB Output is correct
18 Correct 5 ms 336 KB Output is correct
19 Partially correct 8 ms 336 KB Output is partially correct
20 Correct 7 ms 316 KB Output is correct
21 Correct 4 ms 324 KB Output is correct
22 Partially correct 5 ms 328 KB Output is partially correct
23 Correct 5 ms 352 KB Output is correct
24 Correct 4 ms 208 KB Output is correct
25 Partially correct 8 ms 320 KB Output is partially correct
26 Partially correct 7 ms 336 KB Output is partially correct
27 Partially correct 5 ms 312 KB Output is partially correct
28 Partially correct 7 ms 328 KB Output is partially correct
29 Partially correct 5 ms 332 KB Output is partially correct
30 Partially correct 6 ms 320 KB Output is partially correct
31 Partially correct 5 ms 320 KB Output is partially correct
32 Partially correct 4 ms 336 KB Output is partially correct
33 Partially correct 6 ms 332 KB Output is partially correct
34 Partially correct 7 ms 320 KB Output is partially correct
35 Partially correct 4 ms 336 KB Output is partially correct
36 Partially correct 4 ms 380 KB Output is partially correct
37 Partially correct 7 ms 324 KB Output is partially correct
38 Partially correct 6 ms 336 KB Output is partially correct
39 Partially correct 5 ms 304 KB Output is partially correct
40 Partially correct 5 ms 336 KB Output is partially correct
41 Partially correct 7 ms 336 KB Output is partially correct
42 Partially correct 5 ms 332 KB Output is partially correct
43 Partially correct 7 ms 332 KB Output is partially correct
44 Partially correct 5 ms 336 KB Output is partially correct
45 Partially correct 5 ms 312 KB Output is partially correct
46 Partially correct 5 ms 324 KB Output is partially correct
47 Partially correct 7 ms 332 KB Output is partially correct
48 Partially correct 5 ms 336 KB Output is partially correct
49 Partially correct 8 ms 208 KB Output is partially correct
50 Partially correct 4 ms 336 KB Output is partially correct
51 Partially correct 5 ms 356 KB Output is partially correct
52 Partially correct 5 ms 356 KB Output is partially correct
53 Partially correct 5 ms 336 KB Output is partially correct
54 Partially correct 5 ms 208 KB Output is partially correct
55 Partially correct 4 ms 332 KB Output is partially correct
56 Partially correct 5 ms 316 KB Output is partially correct
57 Partially correct 5 ms 324 KB Output is partially correct
58 Partially correct 6 ms 332 KB Output is partially correct
59 Partially correct 5 ms 336 KB Output is partially correct
60 Partially correct 5 ms 208 KB Output is partially correct
61 Partially correct 5 ms 208 KB Output is partially correct
62 Correct 0 ms 208 KB Output is correct
63 Correct 0 ms 208 KB Output is correct
64 Correct 0 ms 208 KB Output is correct
65 Correct 0 ms 208 KB Output is correct
66 Correct 1 ms 208 KB Output is correct
67 Correct 0 ms 208 KB Output is correct
68 Correct 1 ms 208 KB Output is correct
69 Correct 0 ms 208 KB Output is correct
70 Correct 0 ms 208 KB Output is correct
71 Correct 0 ms 208 KB Output is correct
72 Correct 0 ms 208 KB Output is correct
73 Correct 0 ms 208 KB Output is correct
74 Correct 1 ms 208 KB Output is correct
75 Correct 0 ms 208 KB Output is correct
76 Correct 0 ms 208 KB Output is correct
77 Correct 0 ms 208 KB Output is correct
78 Correct 0 ms 208 KB Output is correct
79 Correct 1 ms 208 KB Output is correct
80 Correct 0 ms 208 KB Output is correct
81 Correct 0 ms 208 KB Output is correct
82 Correct 0 ms 208 KB Output is correct
83 Correct 1 ms 208 KB Output is correct
84 Correct 0 ms 236 KB Output is correct
85 Correct 0 ms 208 KB Output is correct
86 Correct 0 ms 208 KB Output is correct
87 Correct 0 ms 208 KB Output is correct
88 Correct 1 ms 208 KB Output is correct
89 Correct 0 ms 208 KB Output is correct
90 Correct 0 ms 208 KB Output is correct
91 Correct 0 ms 256 KB Output is correct