oj.uz

Submission #306825

# Submission time Handle Problem Language Result Execution time Memory
306825 2020-09-26T10:36:44 Z MrDomino Monochrome Points (JOI20_monochrome) C++14
25 / 100
 2000 ms 504 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;

const int N = (int) 2e5 + 7;
int n;
string s;
vector<int> a;
vector<int> b;

int f(int l, int r, int x)
{
    return (l <= x && x <= r);
}

ll get(int k)
{
    vector<pair<int, int>> p;
    for (int i = 0; i < n; i++)
    {
        p.push_back({a[i], b[(i + k) % n]});
    }
    for (auto &it : p)
    {
        if (it.second < it.first)
        {
            swap(it.first, it.second);
        }
    }
    ll sol = 0;
    for (int i = 0; i < (int) p.size(); i++)
    {
        for (int j = 0; j < i; j++)
        {
            sol += f(p[i].first, p[i].second, p[j].first) != f(p[i].first, p[i].second, p[j].second);
        }
    }
    return sol;
}

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

    cin >> n >> s;
    for (int i = 0; i < 2 * n; i++)
    {
        if (s[i] == 'W')
        {
            a.push_back(i);
        }
        else
        {
            b.push_back(i);
        }
    }
    ll sol = 0;
    for (int k = 0; k < n; k++)
    {
        sol = max(sol, get(k));
    }
    cout << sol << "\n";
}

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 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 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 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 31 ms 504 KB Output is correct
15 Correct 35 ms 384 KB Output is correct
16 Correct 26 ms 384 KB Output is correct
17 Correct 26 ms 384 KB Output is correct
18 Correct 19 ms 384 KB Output is correct
19 Correct 22 ms 396 KB Output is correct
20 Correct 21 ms 384 KB Output is correct
21 Correct 19 ms 384 KB Output is correct
22 Correct 20 ms 384 KB Output is correct
23 Correct 8 ms 384 KB Output is correct
24 Correct 19 ms 384 KB Output is correct
25 Correct 18 ms 384 KB Output is correct
26 Correct 19 ms 384 KB Output is correct
27 Correct 22 ms 384 KB Output is correct
28 Correct 25 ms 384 KB Output is correct
29 Correct 19 ms 384 KB Output is correct
30 Correct 19 ms 384 KB Output is correct
31 Correct 27 ms 392 KB Output is correct
32 Correct 29 ms 384 KB Output is correct
33 Correct 27 ms 384 KB Output is correct

Subtask #3
0.0 / 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 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 31 ms 504 KB Output is correct
15 Correct 35 ms 384 KB Output is correct
16 Correct 26 ms 384 KB Output is correct
17 Correct 26 ms 384 KB Output is correct
18 Correct 19 ms 384 KB Output is correct
19 Correct 22 ms 396 KB Output is correct
20 Correct 21 ms 384 KB Output is correct
21 Correct 19 ms 384 KB Output is correct
22 Correct 20 ms 384 KB Output is correct
23 Correct 8 ms 384 KB Output is correct
24 Correct 19 ms 384 KB Output is correct
25 Correct 18 ms 384 KB Output is correct
26 Correct 19 ms 384 KB Output is correct
27 Correct 22 ms 384 KB Output is correct
28 Correct 25 ms 384 KB Output is correct
29 Correct 19 ms 384 KB Output is correct
30 Correct 19 ms 384 KB Output is correct
31 Correct 27 ms 392 KB Output is correct
32 Correct 29 ms 384 KB Output is correct
33 Correct 27 ms 384 KB Output is correct
34 Execution timed out 2076 ms 384 KB Time limit exceeded
35 Halted 0 ms 0 KB -

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 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 31 ms 504 KB Output is correct
15 Correct 35 ms 384 KB Output is correct
16 Correct 26 ms 384 KB Output is correct
17 Correct 26 ms 384 KB Output is correct
18 Correct 19 ms 384 KB Output is correct
19 Correct 22 ms 396 KB Output is correct
20 Correct 21 ms 384 KB Output is correct
21 Correct 19 ms 384 KB Output is correct
22 Correct 20 ms 384 KB Output is correct
23 Correct 8 ms 384 KB Output is correct
24 Correct 19 ms 384 KB Output is correct
25 Correct 18 ms 384 KB Output is correct
26 Correct 19 ms 384 KB Output is correct
27 Correct 22 ms 384 KB Output is correct
28 Correct 25 ms 384 KB Output is correct
29 Correct 19 ms 384 KB Output is correct
30 Correct 19 ms 384 KB Output is correct
31 Correct 27 ms 392 KB Output is correct
32 Correct 29 ms 384 KB Output is correct
33 Correct 27 ms 384 KB Output is correct
34 Execution timed out 2076 ms 384 KB Time limit exceeded
35 Halted 0 ms 0 KB -