Submission #119276

#	Time	Username	Problem	Language	Result	Execution time	Memory
119276		tutis	Bitaro the Brave (JOI19_ho_t1)	C++17	50 / 100	1073 ms	14692 KiB

joi2019_ho_t1

/*input
4 4
JJOO
JJOO
IIJO
IIIJ
*/
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
int main()
{
	ios_base::sync_with_stdio(false);
	int n, m;
	cin >> n >> m;
	string s[n];
	for (int i = 0; i < n; i++)
		cin >> s[i];
	ll ans = 0;
	for (int i = 0; i < n; i++)
	{
		for (int j = 0; j < m; j++)
		{
			if (s[i][j] != 'J')
				continue;
			ll O = 0;
			ll I = 0;
			for (int a = i + 1; a < n; a++)
				I += (s[a][j] == 'I');
			for (int a = j + 1; a < m; a++)
				O += (s[i][a] == 'O');
			ans += O * I;
		}
	}
	cout << ans << "\n";
}

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