oj.uz

Submission #244875

# Submission time Handle Problem Language Result Execution time Memory
244875 2020-07-05T08:00:06 Z rama_pang JJOOII 2 (JOI20_ho_t2) C++14
100 / 100
 59 ms 11660 KB 
#include <bits/stdc++.h>
using namespace std;

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

  int N, K;
  cin >> N >> K;
  string S;
  cin >> S;

  vector<vector<int>> P(N, vector<int>(3, 0));
  for (int i = 0; i < N; i++) {
    if (i > 0) {
      P[i] = P[i - 1];
    }
    if (S[i] == 'J') {
      P[i][0]++;
    } else if (S[i] == 'O') {
      P[i][1]++;
    } else if (S[i] == 'I') {
      P[i][2]++;
    }
  }
  auto Sum = [&](int i, int j, int k) {
    return P[j][k] - (i > 0 ? P[i - 1][k] : 0);
  };
  auto Next = [&](int s, int k) {
    if (s == N) {
      return N;
    }
    int lo = s, hi = N;
    while (lo < hi) {
      int md = (lo + hi) / 2;
      if (Sum(s, md, k) >= K) {
        hi = md;
      } else {
        lo = md + 1;
      }
    }
    return lo;
  };
  auto Solve = [&](int st) {
    int to = Next(Next(Next(st, 0), 1), 2);
    if (to == N) {
      return N + N;
    }
    int len = to - st + 1;
    return len - 3 * K;
  };
  int ans = N + N;
  for (int i = 0; i < N; i++) {
    ans = min(ans, Solve(i));
  }
  if (ans > N) {
    ans = -1;
  }
  cout << ans << "\n";
  return 0;
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 6 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 6 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 512 KB Output is correct
16 Correct 6 ms 512 KB Output is correct
17 Correct 5 ms 512 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 512 KB Output is correct
20 Correct 5 ms 512 KB Output is correct
21 Correct 5 ms 512 KB Output is correct
22 Correct 5 ms 512 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 512 KB Output is correct
25 Correct 5 ms 512 KB Output is correct
26 Correct 5 ms 512 KB Output is correct
27 Correct 5 ms 512 KB Output is correct
28 Correct 5 ms 512 KB Output is correct
29 Correct 5 ms 512 KB Output is correct
30 Correct 5 ms 512 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 512 KB Output is correct
33 Correct 5 ms 512 KB Output is correct
34 Correct 5 ms 512 KB Output is correct
35 Correct 5 ms 512 KB Output is correct

Subtask #3
87.0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 6 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 512 KB Output is correct
16 Correct 6 ms 512 KB Output is correct
17 Correct 5 ms 512 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 512 KB Output is correct
20 Correct 5 ms 512 KB Output is correct
21 Correct 5 ms 512 KB Output is correct
22 Correct 5 ms 512 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 512 KB Output is correct
25 Correct 5 ms 512 KB Output is correct
26 Correct 5 ms 512 KB Output is correct
27 Correct 5 ms 512 KB Output is correct
28 Correct 5 ms 512 KB Output is correct
29 Correct 5 ms 512 KB Output is correct
30 Correct 5 ms 512 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 512 KB Output is correct
33 Correct 5 ms 512 KB Output is correct
34 Correct 5 ms 512 KB Output is correct
35 Correct 5 ms 512 KB Output is correct
36 Correct 45 ms 10764 KB Output is correct
37 Correct 51 ms 11532 KB Output is correct
38 Correct 48 ms 11532 KB Output is correct
39 Correct 57 ms 11404 KB Output is correct
40 Correct 46 ms 11532 KB Output is correct
41 Correct 55 ms 11532 KB Output is correct
42 Correct 59 ms 11532 KB Output is correct
43 Correct 29 ms 7296 KB Output is correct
44 Correct 32 ms 8972 KB Output is correct
45 Correct 42 ms 11532 KB Output is correct
46 Correct 43 ms 11532 KB Output is correct
47 Correct 42 ms 11532 KB Output is correct
48 Correct 42 ms 11532 KB Output is correct
49 Correct 28 ms 7692 KB Output is correct
50 Correct 42 ms 11532 KB Output is correct
51 Correct 43 ms 11496 KB Output is correct
52 Correct 30 ms 11148 KB Output is correct
53 Correct 30 ms 11532 KB Output is correct
54 Correct 35 ms 11532 KB Output is correct
55 Correct 31 ms 11468 KB Output is correct
56 Correct 26 ms 11660 KB Output is correct