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Submission #294390

# Submission time Handle Problem Language Result Execution time Memory
294390 2020-09-08T22:00:45 Z cuom1999 Monochrome Points (JOI20_monochrome) C++14
35 / 100
 2000 ms 3120 KB 
#include <bits/stdc++.h>
using namespace std;

// finding max distance

int main() {
    //freopen("input.txt", "r", stdin);
    ios::sync_with_stdio(0);
    cin.tie(NULL);

    int n;
    cin >> n;
    string s;
    cin >> s;

    vector<int> black, white;
    for (int i = 0; i < 2 * n; i++) {
        if (s[i] == 'B') {
            black.push_back(i);
        }
        else {
            white.push_back(i);
        }
    }

    auto solve = [&](int k) {
        long long res = 0;
        for (int i = 0; i < n; i++) {
            int dist = abs(black[i] - white[(i + k) % n]);
            res += min(dist, 2 * n - dist);
        }

        return res;
    };
        
    long long val = 0;
    for (int i = 0; i < n; i++) {
        val = max(val, solve(i));
    }

    cout << (val - n) / 2 << endl;

    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 416 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 416 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 22 ms 384 KB Output is correct
35 Correct 22 ms 384 KB Output is correct
36 Correct 21 ms 384 KB Output is correct
37 Correct 19 ms 384 KB Output is correct
38 Correct 18 ms 384 KB Output is correct
39 Correct 22 ms 504 KB Output is correct
40 Correct 18 ms 384 KB Output is correct
41 Correct 16 ms 384 KB Output is correct
42 Correct 21 ms 384 KB Output is correct
43 Correct 21 ms 384 KB Output is correct
44 Correct 19 ms 384 KB Output is correct
45 Correct 20 ms 384 KB Output is correct
46 Correct 22 ms 384 KB Output is correct
47 Correct 21 ms 384 KB Output is correct
48 Correct 21 ms 384 KB Output is correct
49 Correct 18 ms 384 KB Output is correct
50 Correct 21 ms 384 KB Output is correct
51 Correct 22 ms 384 KB Output is correct
52 Correct 22 ms 384 KB Output is correct

Subtask #4
0.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 416 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 22 ms 384 KB Output is correct
35 Correct 22 ms 384 KB Output is correct
36 Correct 21 ms 384 KB Output is correct
37 Correct 19 ms 384 KB Output is correct
38 Correct 18 ms 384 KB Output is correct
39 Correct 22 ms 504 KB Output is correct
40 Correct 18 ms 384 KB Output is correct
41 Correct 16 ms 384 KB Output is correct
42 Correct 21 ms 384 KB Output is correct
43 Correct 21 ms 384 KB Output is correct
44 Correct 19 ms 384 KB Output is correct
45 Correct 20 ms 384 KB Output is correct
46 Correct 22 ms 384 KB Output is correct
47 Correct 21 ms 384 KB Output is correct
48 Correct 21 ms 384 KB Output is correct
49 Correct 18 ms 384 KB Output is correct
50 Correct 21 ms 384 KB Output is correct
51 Correct 22 ms 384 KB Output is correct
52 Correct 22 ms 384 KB Output is correct
53 Execution timed out 2020 ms 3120 KB Time limit exceeded
54 Halted 0 ms 0 KB -