oj.uz

Submission #868839

# Submission time Handle Problem Language Result Execution time Memory
868839 2023-11-02T05:11:54 Z mzh JJOOII 2 (JOI20_ho_t2) C++17
100 / 100
 29 ms 43240 KB 
#include <bits/stdc++.h>

using namespace std;

const int MXN = 2e5 + 5, LG = __lg(MXN) + 1;

int jmp[3][LG][MXN];

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

    int n, m;
    string s;
    cin >> n >> m >> s;

    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < LG; j++) {
            for (int k = 0; k <= n + 1; k++) {
                jmp[i][j][k] = n + 1;
            }
        }
    }

    for (int i = 0; i < 3; i++) {
        for (int j = n - 1; j >= 0; j--) {
            jmp[i][0][j] = (s[j] == "JOI"[i] ? j + 1 : jmp[i][0][j + 1]);
        }
        for (int j = 1; j < LG; j++) {
            for (int k = 0; k + (1 << j) <= n; k++) {
                jmp[i][j][k] = jmp[i][j - 1][jmp[i][j - 1][k]];
            }
        }
    }

    int ans = 1e9;
    for (int i = 0; i < n; i++) {
        int idx = i;
        for (int j = 0; j < 3; j++) {
            for (int k = 0; k < LG; k++) {
                if ((m >> k) & 1) {
                    idx = jmp[j][k][idx];
                }
            }
        }
        if (idx != n + 1) {
            ans = min(ans, idx - i - 3 * m);
        }
    }
    cout << (ans == 1e9 ? -1 : ans) << '\n';
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 41308 KB Output is correct
2 Correct 4 ms 41308 KB Output is correct
3 Correct 4 ms 41308 KB Output is correct
4 Correct 4 ms 41308 KB Output is correct
5 Correct 4 ms 41308 KB Output is correct
6 Correct 4 ms 41308 KB Output is correct
7 Correct 5 ms 41308 KB Output is correct
8 Correct 4 ms 41308 KB Output is correct
9 Correct 4 ms 41308 KB Output is correct
10 Correct 4 ms 41308 KB Output is correct
11 Correct 4 ms 41432 KB Output is correct
12 Correct 4 ms 41308 KB Output is correct
13 Correct 4 ms 41496 KB Output is correct
14 Correct 4 ms 41308 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 41308 KB Output is correct
2 Correct 4 ms 41308 KB Output is correct
3 Correct 4 ms 41308 KB Output is correct
4 Correct 4 ms 41308 KB Output is correct
5 Correct 4 ms 41308 KB Output is correct
6 Correct 4 ms 41308 KB Output is correct
7 Correct 5 ms 41308 KB Output is correct
8 Correct 4 ms 41308 KB Output is correct
9 Correct 4 ms 41308 KB Output is correct
10 Correct 4 ms 41308 KB Output is correct
11 Correct 4 ms 41432 KB Output is correct
12 Correct 4 ms 41308 KB Output is correct
13 Correct 4 ms 41496 KB Output is correct
14 Correct 4 ms 41308 KB Output is correct
15 Correct 5 ms 41308 KB Output is correct
16 Correct 5 ms 41308 KB Output is correct
17 Correct 5 ms 41304 KB Output is correct
18 Correct 4 ms 41308 KB Output is correct
19 Correct 5 ms 41308 KB Output is correct
20 Correct 5 ms 41308 KB Output is correct
21 Correct 5 ms 41308 KB Output is correct
22 Correct 6 ms 41308 KB Output is correct
23 Correct 6 ms 41304 KB Output is correct
24 Correct 5 ms 41308 KB Output is correct
25 Correct 5 ms 41452 KB Output is correct
26 Correct 5 ms 41304 KB Output is correct
27 Correct 5 ms 41308 KB Output is correct
28 Correct 5 ms 41424 KB Output is correct
29 Correct 4 ms 41308 KB Output is correct
30 Correct 5 ms 41308 KB Output is correct
31 Correct 4 ms 41308 KB Output is correct
32 Correct 5 ms 41500 KB Output is correct
33 Correct 5 ms 41308 KB Output is correct
34 Correct 4 ms 41304 KB Output is correct
35 Correct 5 ms 41308 KB Output is correct

Subtask #3
87.0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 41308 KB Output is correct
2 Correct 4 ms 41308 KB Output is correct
3 Correct 4 ms 41308 KB Output is correct
4 Correct 4 ms 41308 KB Output is correct
5 Correct 4 ms 41308 KB Output is correct
6 Correct 4 ms 41308 KB Output is correct
7 Correct 5 ms 41308 KB Output is correct
8 Correct 4 ms 41308 KB Output is correct
9 Correct 4 ms 41308 KB Output is correct
10 Correct 4 ms 41308 KB Output is correct
11 Correct 4 ms 41432 KB Output is correct
12 Correct 4 ms 41308 KB Output is correct
13 Correct 4 ms 41496 KB Output is correct
14 Correct 4 ms 41308 KB Output is correct
15 Correct 5 ms 41308 KB Output is correct
16 Correct 5 ms 41308 KB Output is correct
17 Correct 5 ms 41304 KB Output is correct
18 Correct 4 ms 41308 KB Output is correct
19 Correct 5 ms 41308 KB Output is correct
20 Correct 5 ms 41308 KB Output is correct
21 Correct 5 ms 41308 KB Output is correct
22 Correct 6 ms 41308 KB Output is correct
23 Correct 6 ms 41304 KB Output is correct
24 Correct 5 ms 41308 KB Output is correct
25 Correct 5 ms 41452 KB Output is correct
26 Correct 5 ms 41304 KB Output is correct
27 Correct 5 ms 41308 KB Output is correct
28 Correct 5 ms 41424 KB Output is correct
29 Correct 4 ms 41308 KB Output is correct
30 Correct 5 ms 41308 KB Output is correct
31 Correct 4 ms 41308 KB Output is correct
32 Correct 5 ms 41500 KB Output is correct
33 Correct 5 ms 41308 KB Output is correct
34 Correct 4 ms 41304 KB Output is correct
35 Correct 5 ms 41308 KB Output is correct
36 Correct 23 ms 42984 KB Output is correct
37 Correct 25 ms 43240 KB Output is correct
38 Correct 29 ms 43176 KB Output is correct
39 Correct 26 ms 43240 KB Output is correct
40 Correct 27 ms 43236 KB Output is correct
41 Correct 28 ms 43240 KB Output is correct
42 Correct 26 ms 43236 KB Output is correct
43 Correct 17 ms 42328 KB Output is correct
44 Correct 21 ms 42728 KB Output is correct
45 Correct 27 ms 43240 KB Output is correct
46 Correct 28 ms 43240 KB Output is correct
47 Correct 27 ms 43236 KB Output is correct
48 Correct 28 ms 43240 KB Output is correct
49 Correct 18 ms 42468 KB Output is correct
50 Correct 26 ms 43240 KB Output is correct
51 Correct 29 ms 43240 KB Output is correct
52 Correct 25 ms 42984 KB Output is correct
53 Correct 28 ms 43240 KB Output is correct
54 Correct 23 ms 43240 KB Output is correct
55 Correct 29 ms 43240 KB Output is correct
56 Correct 26 ms 43236 KB Output is correct