oj.uz

Submission #959511

# Submission time Handle Problem Language Result Execution time Memory
959511 2024-04-08T11:10:44 Z OIaspirant2307 JJOOII 2 (JOI20_ho_t2) C++17
100 / 100
 26 ms 3560 KB 
#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>

using namespace std;

int main()
{
    int n, k;
    cin >> n >> k;
    string s;
    cin >> s;

    vector<int> preJ(n, 0), preO(n, 0), preI(n, 0);
    preJ[0] = (s[0] == 'J');
    preO[0] = (s[0] == 'O');
    preI[0] = (s[0] == 'I');

    for (int i = 1; i < n; i++)
    {
        preJ[i] = preJ[i - 1] + (s[i] == 'J');
        preO[i] = preO[i - 1] + (s[i] == 'O');
        preI[i] = preI[i - 1] + (s[i] == 'I');
    }

    int ans = n + 1;
    for (int i = 0; i < n; i++)
    {
        int x = lower_bound(preJ.begin(), preJ.end(), i + 1) - preJ.begin();
        int J = lower_bound(preJ.begin(), preJ.end(), i + k) - preJ.begin();
        if (J >= n)
            continue;
        int O = lower_bound(preO.begin(), preO.end(), preO[J] + k) - preO.begin();
        if (O >= n)
            continue;
        int I = lower_bound(preI.begin(), preI.end(), preI[O] + k) - preI.begin();
        if (I >= n)
            continue;
        ans = min(ans, I - x + 1 - 3 * k);
    }

    cout << (ans == n + 1 ? -1 : ans) << endl;
    return 0;
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 356 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 356 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 440 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 440 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct

Subtask #3
87.0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 356 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 440 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 440 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 22 ms 3052 KB Output is correct
37 Correct 21 ms 3308 KB Output is correct
38 Correct 23 ms 3308 KB Output is correct
39 Correct 24 ms 3308 KB Output is correct
40 Correct 21 ms 3312 KB Output is correct
41 Correct 22 ms 3308 KB Output is correct
42 Correct 26 ms 3312 KB Output is correct
43 Correct 14 ms 2284 KB Output is correct
44 Correct 16 ms 2536 KB Output is correct
45 Correct 21 ms 3308 KB Output is correct
46 Correct 20 ms 3308 KB Output is correct
47 Correct 18 ms 3504 KB Output is correct
48 Correct 20 ms 3304 KB Output is correct
49 Correct 14 ms 2284 KB Output is correct
50 Correct 20 ms 3308 KB Output is correct
51 Correct 18 ms 3308 KB Output is correct
52 Correct 17 ms 3052 KB Output is correct
53 Correct 16 ms 3560 KB Output is correct
54 Correct 19 ms 3304 KB Output is correct
55 Correct 18 ms 3308 KB Output is correct
56 Correct 17 ms 3316 KB Output is correct