oj.uz

Submission #306839

# Submission time Handle Problem Language Result Execution time Memory
306839 2020-09-26T10:44:17 Z MrDomino Monochrome Points (JOI20_monochrome) C++14
25 / 100
 2000 ms 404 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);
        }
    }
    sort(p.begin(), p.end());
    ll sol = 0;
    for (int i = 0; i < (int) p.size(); i++)
    {
        for (int j = 0; j < i; j++)
        {
            sol += (p[i].first <= p[j].second && p[j].second <= p[i].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 1 ms 384 KB Output is correct
3 Correct 1 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 0 ms 384 KB Output is correct
10 Correct 1 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 1 ms 384 KB Output is correct
3 Correct 1 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 0 ms 384 KB Output is correct
10 Correct 1 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 25 ms 384 KB Output is correct
15 Correct 22 ms 384 KB Output is correct
16 Correct 21 ms 404 KB Output is correct
17 Correct 22 ms 384 KB Output is correct
18 Correct 12 ms 396 KB Output is correct
19 Correct 14 ms 384 KB Output is correct
20 Correct 14 ms 384 KB Output is correct
21 Correct 13 ms 384 KB Output is correct
22 Correct 15 ms 384 KB Output is correct
23 Correct 7 ms 384 KB Output is correct
24 Correct 12 ms 384 KB Output is correct
25 Correct 12 ms 384 KB Output is correct
26 Correct 14 ms 384 KB Output is correct
27 Correct 15 ms 384 KB Output is correct
28 Correct 17 ms 384 KB Output is correct
29 Correct 12 ms 384 KB Output is correct
30 Correct 12 ms 384 KB Output is correct
31 Correct 16 ms 384 KB Output is correct
32 Correct 16 ms 384 KB Output is correct
33 Correct 18 ms 404 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 1 ms 384 KB Output is correct
3 Correct 1 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 0 ms 384 KB Output is correct
10 Correct 1 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 25 ms 384 KB Output is correct
15 Correct 22 ms 384 KB Output is correct
16 Correct 21 ms 404 KB Output is correct
17 Correct 22 ms 384 KB Output is correct
18 Correct 12 ms 396 KB Output is correct
19 Correct 14 ms 384 KB Output is correct
20 Correct 14 ms 384 KB Output is correct
21 Correct 13 ms 384 KB Output is correct
22 Correct 15 ms 384 KB Output is correct
23 Correct 7 ms 384 KB Output is correct
24 Correct 12 ms 384 KB Output is correct
25 Correct 12 ms 384 KB Output is correct
26 Correct 14 ms 384 KB Output is correct
27 Correct 15 ms 384 KB Output is correct
28 Correct 17 ms 384 KB Output is correct
29 Correct 12 ms 384 KB Output is correct
30 Correct 12 ms 384 KB Output is correct
31 Correct 16 ms 384 KB Output is correct
32 Correct 16 ms 384 KB Output is correct
33 Correct 18 ms 404 KB Output is correct
34 Execution timed out 2072 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 1 ms 384 KB Output is correct
3 Correct 1 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 0 ms 384 KB Output is correct
10 Correct 1 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 25 ms 384 KB Output is correct
15 Correct 22 ms 384 KB Output is correct
16 Correct 21 ms 404 KB Output is correct
17 Correct 22 ms 384 KB Output is correct
18 Correct 12 ms 396 KB Output is correct
19 Correct 14 ms 384 KB Output is correct
20 Correct 14 ms 384 KB Output is correct
21 Correct 13 ms 384 KB Output is correct
22 Correct 15 ms 384 KB Output is correct
23 Correct 7 ms 384 KB Output is correct
24 Correct 12 ms 384 KB Output is correct
25 Correct 12 ms 384 KB Output is correct
26 Correct 14 ms 384 KB Output is correct
27 Correct 15 ms 384 KB Output is correct
28 Correct 17 ms 384 KB Output is correct
29 Correct 12 ms 384 KB Output is correct
30 Correct 12 ms 384 KB Output is correct
31 Correct 16 ms 384 KB Output is correct
32 Correct 16 ms 384 KB Output is correct
33 Correct 18 ms 404 KB Output is correct
34 Execution timed out 2072 ms 384 KB Time limit exceeded
35 Halted 0 ms 0 KB -