Submission #119277

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
119277	2019-06-20T20:44:30 Z	tutis	Bitaro the Brave (JOI19_ho_t1)	C++17	100 / 100	118 ms	87416 KB

joi2019_ho_t1

/*input
4 4
JJOO
JJOO
IIJO
IIIJ
*/
#pragma GCC optimize ("O3")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
int II[3030][3030];
int OO[3030][3030];
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 = n - 1; i >= 0; i--)
	{
		for (int j = m - 1; j >= 0; j--)
		{
			OO[i][j] = OO[i][j + 1];
			II[i][j] = II[i + 1][j];
			ll O = OO[i][j];
			ll I = II[i][j];
			if (s[i][j] == 'J')
				ans += O * I;
			OO[i][j] += (s[i][j] == 'O');
			II[i][j] += (s[i][j] == 'I');
		}
	}
	cout << ans << "\n";
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	2 ms	384 KB	Output is correct
5	Correct	2 ms	1280 KB	Output is correct
6	Correct	3 ms	1280 KB	Output is correct
7	Correct	3 ms	1152 KB	Output is correct
8	Correct	3 ms	1280 KB	Output is correct
9	Correct	3 ms	1152 KB	Output is correct
10	Correct	3 ms	1152 KB	Output is correct
11	Correct	3 ms	1280 KB	Output is correct
12	Correct	3 ms	1280 KB	Output is correct
13	Correct	2 ms	1152 KB	Output is correct

Subtask #2

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	2 ms	384 KB	Output is correct
5	Correct	2 ms	1280 KB	Output is correct
6	Correct	3 ms	1280 KB	Output is correct
7	Correct	3 ms	1152 KB	Output is correct
8	Correct	3 ms	1280 KB	Output is correct
9	Correct	3 ms	1152 KB	Output is correct
10	Correct	3 ms	1152 KB	Output is correct
11	Correct	3 ms	1280 KB	Output is correct
12	Correct	3 ms	1280 KB	Output is correct
13	Correct	2 ms	1152 KB	Output is correct
14	Correct	8 ms	6016 KB	Output is correct
15	Correct	4 ms	3712 KB	Output is correct
16	Correct	5 ms	3584 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	8 ms	6528 KB	Output is correct
19	Correct	7 ms	6408 KB	Output is correct
20	Correct	8 ms	6400 KB	Output is correct
21	Correct	8 ms	6528 KB	Output is correct
22	Correct	8 ms	6528 KB	Output is correct
23	Correct	7 ms	6528 KB	Output is correct
24	Correct	8 ms	6656 KB	Output is correct
25	Correct	7 ms	6528 KB	Output is correct
26	Correct	8 ms	6400 KB	Output is correct

Subtask #3

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	2 ms	384 KB	Output is correct
5	Correct	2 ms	1280 KB	Output is correct
6	Correct	3 ms	1280 KB	Output is correct
7	Correct	3 ms	1152 KB	Output is correct
8	Correct	3 ms	1280 KB	Output is correct
9	Correct	3 ms	1152 KB	Output is correct
10	Correct	3 ms	1152 KB	Output is correct
11	Correct	3 ms	1280 KB	Output is correct
12	Correct	3 ms	1280 KB	Output is correct
13	Correct	2 ms	1152 KB	Output is correct
14	Correct	8 ms	6016 KB	Output is correct
15	Correct	4 ms	3712 KB	Output is correct
16	Correct	5 ms	3584 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	8 ms	6528 KB	Output is correct
19	Correct	7 ms	6408 KB	Output is correct
20	Correct	8 ms	6400 KB	Output is correct
21	Correct	8 ms	6528 KB	Output is correct
22	Correct	8 ms	6528 KB	Output is correct
23	Correct	7 ms	6528 KB	Output is correct
24	Correct	8 ms	6656 KB	Output is correct
25	Correct	7 ms	6528 KB	Output is correct
26	Correct	8 ms	6400 KB	Output is correct
27	Correct	110 ms	80636 KB	Output is correct
28	Correct	19 ms	19248 KB	Output is correct
29	Correct	10 ms	7808 KB	Output is correct
30	Correct	3 ms	640 KB	Output is correct
31	Correct	110 ms	71632 KB	Output is correct
32	Correct	93 ms	87160 KB	Output is correct
33	Correct	90 ms	87032 KB	Output is correct
34	Correct	108 ms	82040 KB	Output is correct
35	Correct	89 ms	87324 KB	Output is correct
36	Correct	94 ms	87292 KB	Output is correct
37	Correct	118 ms	87416 KB	Output is correct
38	Correct	72 ms	71588 KB	Output is correct
39	Correct	68 ms	71288 KB	Output is correct