oj.uz

Submission #953551

# Submission time Handle Problem Language Result Execution time Memory
953551 2024-03-26T07:11:56 Z NeroZein Monochrome Points (JOI20_monochrome) C++17
100 / 100
 39 ms 3044 KB 
#include "bits/stdc++.h"
using namespace std;

#ifdef Nero
#include "Deb.h"
#else
#define debug(...)
#endif

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int n;
  cin >> n;
  vector<int> black, white; 
  for (int i = 1; i <= n * 2; ++i) {
    char c;
    cin >> c;
    if (c == 'B') {
      black.push_back(i);
    } else {
      white.push_back(i); 
    }
  }
  auto f = [&](int j) {
    long long ret = 0;
    for (int i = 0; i < n; ++i) {
      int x = white[i];
      int y = black[(j + i) % n];
      ret += min(abs(x - y), 2 * n - abs(x - y)) - 1; 
    }
    return ret; 
  }; 
  int l = 0, r = n - 1;
  while (l < r) {
    int mid = (l + r) / 2; 
    long long c1 = f(mid), c2 = f(mid + 1);
    if (c1 < c2) {
      l = mid + 1; 
    } else {
      r = mid;
    }
  }
  cout << f(l) / 2 << '\n';
  return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 464 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 456 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 456 KB Output is correct
33 Correct 0 ms 348 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 464 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 456 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 456 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 456 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 1 ms 544 KB Output is correct
43 Correct 1 ms 452 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 1 ms 344 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 460 KB Output is correct
48 Correct 1 ms 408 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 1 ms 344 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 1 ms 348 KB Output is correct

Subtask #4
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 464 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 456 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 456 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 456 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 1 ms 544 KB Output is correct
43 Correct 1 ms 452 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 1 ms 344 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 460 KB Output is correct
48 Correct 1 ms 408 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 1 ms 344 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 39 ms 2508 KB Output is correct
54 Correct 39 ms 2512 KB Output is correct
55 Correct 39 ms 2508 KB Output is correct
56 Correct 37 ms 2376 KB Output is correct
57 Correct 37 ms 2504 KB Output is correct
58 Correct 38 ms 2520 KB Output is correct
59 Correct 35 ms 2512 KB Output is correct
60 Correct 38 ms 2552 KB Output is correct
61 Correct 37 ms 2416 KB Output is correct
62 Correct 39 ms 2512 KB Output is correct
63 Correct 37 ms 2508 KB Output is correct
64 Correct 37 ms 3032 KB Output is correct
65 Correct 34 ms 2508 KB Output is correct
66 Correct 34 ms 3044 KB Output is correct
67 Correct 36 ms 3044 KB Output is correct
68 Correct 34 ms 3040 KB Output is correct
69 Correct 37 ms 2636 KB Output is correct
70 Correct 33 ms 2400 KB Output is correct
71 Correct 38 ms 3032 KB Output is correct
72 Correct 38 ms 3032 KB Output is correct
73 Correct 38 ms 2512 KB Output is correct