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Submission #610978

# Submission time Handle Problem Language Result Execution time Memory
610978 2022-07-28T21:01:00 Z four_specks Bitaro the Brave (JOI19_ho_t1) C++17
100 / 100
 207 ms 160096 KB 
#include <bits/stdc++.h>

using namespace std;

inline namespace
{
} // namespace

void solve()
{
    int n, m;
    cin >> n >> m;

    vector<string> a(n);
    for (string &s : a)
        cin >> s;

    vector suff1(n, vector<long>(m + 1, 0)), suff2(m, vector<long>(n + 1, 0));
    for (int i = 0; i < n; i++)
    {
        for (int j = m - 1; j >= 0; j--)
            suff1[i][j] = suff1[i][j + 1] + (a[i][j] == 'O');
    }
    for (int i = 0; i < m; i++)
    {
        for (int j = n - 1; j >= 0; j--)
            suff2[i][j] = suff2[i][j + 1] + (a[j][i] == 'I');
    }

    long res = 0;
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < m; j++)
        {
            if (a[i][j] == 'J')
                res += suff1[i][j] * suff2[j][i];
        }
    }

    cout << res << '\n';
}

int main()
{
    ios_base::sync_with_stdio(false), cin.tie(NULL);

    solve();

    return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 496 KB Output is correct
12 Correct 0 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 496 KB Output is correct
12 Correct 0 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 3 ms 3540 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 2 ms 2516 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 5 ms 4436 KB Output is correct
19 Correct 4 ms 4308 KB Output is correct
20 Correct 4 ms 4436 KB Output is correct
21 Correct 5 ms 4676 KB Output is correct
22 Correct 5 ms 4516 KB Output is correct
23 Correct 4 ms 4692 KB Output is correct
24 Correct 5 ms 4680 KB Output is correct
25 Correct 4 ms 4564 KB Output is correct
26 Correct 5 ms 4684 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 496 KB Output is correct
12 Correct 0 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 3 ms 3540 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 2 ms 2516 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 5 ms 4436 KB Output is correct
19 Correct 4 ms 4308 KB Output is correct
20 Correct 4 ms 4436 KB Output is correct
21 Correct 5 ms 4676 KB Output is correct
22 Correct 5 ms 4516 KB Output is correct
23 Correct 4 ms 4692 KB Output is correct
24 Correct 5 ms 4680 KB Output is correct
25 Correct 4 ms 4564 KB Output is correct
26 Correct 5 ms 4684 KB Output is correct
27 Correct 207 ms 151196 KB Output is correct
28 Correct 1 ms 840 KB Output is correct
29 Correct 11 ms 11860 KB Output is correct
30 Correct 1 ms 724 KB Output is correct
31 Correct 124 ms 111188 KB Output is correct
32 Correct 158 ms 158912 KB Output is correct
33 Correct 164 ms 159556 KB Output is correct
34 Correct 154 ms 129040 KB Output is correct
35 Correct 185 ms 158928 KB Output is correct
36 Correct 165 ms 159496 KB Output is correct
37 Correct 194 ms 160096 KB Output is correct
38 Correct 106 ms 110364 KB Output is correct
39 Correct 110 ms 110768 KB Output is correct