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Submission #495322

# Submission time Handle Problem Language Result Execution time Memory
495322 2021-12-18T11:48:52 Z 600Mihnea Monochrome Points (JOI20_monochrome) C++17
25 / 100
 2000 ms 332 KB 
#include <iostream>
#include <vector>
#include <string>
#include <functional>
#include <cassert>

using namespace std;

typedef long long ll;
const int N = 400000 + 7;
int n;
string s;


int main() {
  ios::sync_with_stdio(0); cin.tie(0);

  cin >> n >> s;
 
  vector<int> a, b;
  for (int i = 0; i < 2 * n; i++) {
    if (s[i] != s[0]) {
      a.push_back(i);
    }
    else {
      b.push_back(i);
    }
  }
  vector<ll> cnt(n);

  ll sol = 0;
  for (int shift = 0; shift < n; shift++) {
    for (int i = 0; i < n; i++) {
      int i2 = (i + shift) % n, l = min(a[i], b[i2]), r = max(a[i], b[i2]);
      for (int j = 0; j < n; j++) {
        int j2 = (j + shift) % n;
        if (l < min(a[j], b[j2]) && min(a[j], b[j2]) < r && r < max(a[j], b[j2])) {
          cnt[shift]++;
        }
      }
    }
  }


  for (auto& x : cnt) {
    sol = max(sol, x);
  }
  cout << sol << "\n";
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 224 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 224 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 126 ms 296 KB Output is correct
15 Correct 129 ms 204 KB Output is correct
16 Correct 124 ms 204 KB Output is correct
17 Correct 125 ms 300 KB Output is correct
18 Correct 89 ms 300 KB Output is correct
19 Correct 102 ms 304 KB Output is correct
20 Correct 103 ms 300 KB Output is correct
21 Correct 91 ms 300 KB Output is correct
22 Correct 96 ms 300 KB Output is correct
23 Correct 37 ms 204 KB Output is correct
24 Correct 86 ms 204 KB Output is correct
25 Correct 80 ms 204 KB Output is correct
26 Correct 95 ms 204 KB Output is correct
27 Correct 103 ms 204 KB Output is correct
28 Correct 121 ms 300 KB Output is correct
29 Correct 87 ms 292 KB Output is correct
30 Correct 91 ms 296 KB Output is correct
31 Correct 129 ms 300 KB Output is correct
32 Correct 129 ms 204 KB Output is correct
33 Correct 129 ms 204 KB Output is correct

Subtask #3
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 224 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 126 ms 296 KB Output is correct
15 Correct 129 ms 204 KB Output is correct
16 Correct 124 ms 204 KB Output is correct
17 Correct 125 ms 300 KB Output is correct
18 Correct 89 ms 300 KB Output is correct
19 Correct 102 ms 304 KB Output is correct
20 Correct 103 ms 300 KB Output is correct
21 Correct 91 ms 300 KB Output is correct
22 Correct 96 ms 300 KB Output is correct
23 Correct 37 ms 204 KB Output is correct
24 Correct 86 ms 204 KB Output is correct
25 Correct 80 ms 204 KB Output is correct
26 Correct 95 ms 204 KB Output is correct
27 Correct 103 ms 204 KB Output is correct
28 Correct 121 ms 300 KB Output is correct
29 Correct 87 ms 292 KB Output is correct
30 Correct 91 ms 296 KB Output is correct
31 Correct 129 ms 300 KB Output is correct
32 Correct 129 ms 204 KB Output is correct
33 Correct 129 ms 204 KB Output is correct
34 Execution timed out 2086 ms 332 KB Time limit exceeded
35 Halted 0 ms 0 KB -

Subtask #4
0.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 224 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 126 ms 296 KB Output is correct
15 Correct 129 ms 204 KB Output is correct
16 Correct 124 ms 204 KB Output is correct
17 Correct 125 ms 300 KB Output is correct
18 Correct 89 ms 300 KB Output is correct
19 Correct 102 ms 304 KB Output is correct
20 Correct 103 ms 300 KB Output is correct
21 Correct 91 ms 300 KB Output is correct
22 Correct 96 ms 300 KB Output is correct
23 Correct 37 ms 204 KB Output is correct
24 Correct 86 ms 204 KB Output is correct
25 Correct 80 ms 204 KB Output is correct
26 Correct 95 ms 204 KB Output is correct
27 Correct 103 ms 204 KB Output is correct
28 Correct 121 ms 300 KB Output is correct
29 Correct 87 ms 292 KB Output is correct
30 Correct 91 ms 296 KB Output is correct
31 Correct 129 ms 300 KB Output is correct
32 Correct 129 ms 204 KB Output is correct
33 Correct 129 ms 204 KB Output is correct
34 Execution timed out 2086 ms 332 KB Time limit exceeded
35 Halted 0 ms 0 KB -