Submission #779454

#	Time	Username	Problem	Language	Result	Execution time	Memory
779454		borisAngelov	Bitaro the Brave (JOI19_ho_t1)	C++17	50 / 100	1049 ms	17352 KiB

joi2019_ho_t1

#include <bits/stdc++.h>

using namespace std;

const int maxn = 3005;

int n, m;

char table[maxn][maxn];

void fastIO()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}

int main()
{
    fastIO();

    cin >> n >> m;

    for (int i = 1; i <= n; ++i)
    {
        for (int j = 1; j <= m; ++j)
        {
            cin >> table[i][j];
        }
    }

    long long ans = 0;

    for (int i = 1; i <= n; ++i)
    {
        for (int j = 1; j <= m; ++j)
        {
            if (table[i][j] == 'J')
            {
                int cnt1 = 0;

                for (int l = j + 1; l <= m; ++l)
                {
                    if (table[i][l] == 'O')
                    {
                        ++cnt1;
                    }
                }

                int cnt2 = 0;

                for (int k = i + 1; k <= n; ++k)
                {
                    if (table[k][j] == 'I')
                    {
                        ++cnt2;
                    }
                }

                ans += (cnt1 * cnt2);
            }
        }
    }

    cout << ans << endl;

    return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 0 / 50