Submission #97402

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
97402	2019-02-15T17:46:48 Z	MatheusLealV	Bitaro the Brave (JOI19_ho_t1)	C++17	100 / 100	296 ms	151636 KB

joi2019_ho_t1

#include <bits/stdc++.h>
#define N 3030
using namespace std;
typedef long long ll;

int n, m;

ll ans, I[N][N], O[N][N];

char mat[N][N];

int main()
{
	ios::sync_with_stdio(false); cin.tie(0);

	cin>>n>>m;

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

	for(int i = n; i >= 1; i--)
	{
		for(int j = m; j >= 1; j--)
		{
			I[i][j] = I[i + 1][j] + (mat[i][j] == 'I');

			O[i][j] = O[i][j + 1] + (mat[i][j] == 'O');

			if(mat[i][j] == 'J') ans += I[i][j] * O[i][j];
		}
	}

	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	3 ms	1536 KB	Output is correct
6	Correct	3 ms	1664 KB	Output is correct
7	Correct	3 ms	1536 KB	Output is correct
8	Correct	3 ms	1664 KB	Output is correct
9	Correct	4 ms	1536 KB	Output is correct
10	Correct	4 ms	1408 KB	Output is correct
11	Correct	3 ms	1664 KB	Output is correct
12	Correct	3 ms	1536 KB	Output is correct
13	Correct	3 ms	1536 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	3 ms	1536 KB	Output is correct
6	Correct	3 ms	1664 KB	Output is correct
7	Correct	3 ms	1536 KB	Output is correct
8	Correct	3 ms	1664 KB	Output is correct
9	Correct	4 ms	1536 KB	Output is correct
10	Correct	4 ms	1408 KB	Output is correct
11	Correct	3 ms	1664 KB	Output is correct
12	Correct	3 ms	1536 KB	Output is correct
13	Correct	3 ms	1536 KB	Output is correct
14	Correct	14 ms	8832 KB	Output is correct
15	Correct	6 ms	5120 KB	Output is correct
16	Correct	10 ms	5376 KB	Output is correct
17	Correct	2 ms	512 KB	Output is correct
18	Correct	15 ms	9856 KB	Output is correct
19	Correct	13 ms	9600 KB	Output is correct
20	Correct	16 ms	9600 KB	Output is correct
21	Correct	17 ms	9848 KB	Output is correct
22	Correct	16 ms	9600 KB	Output is correct
23	Correct	16 ms	9592 KB	Output is correct
24	Correct	17 ms	10020 KB	Output is correct
25	Correct	12 ms	9728 KB	Output is correct
26	Correct	13 ms	9600 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	3 ms	1536 KB	Output is correct
6	Correct	3 ms	1664 KB	Output is correct
7	Correct	3 ms	1536 KB	Output is correct
8	Correct	3 ms	1664 KB	Output is correct
9	Correct	4 ms	1536 KB	Output is correct
10	Correct	4 ms	1408 KB	Output is correct
11	Correct	3 ms	1664 KB	Output is correct
12	Correct	3 ms	1536 KB	Output is correct
13	Correct	3 ms	1536 KB	Output is correct
14	Correct	14 ms	8832 KB	Output is correct
15	Correct	6 ms	5120 KB	Output is correct
16	Correct	10 ms	5376 KB	Output is correct
17	Correct	2 ms	512 KB	Output is correct
18	Correct	15 ms	9856 KB	Output is correct
19	Correct	13 ms	9600 KB	Output is correct
20	Correct	16 ms	9600 KB	Output is correct
21	Correct	17 ms	9848 KB	Output is correct
22	Correct	16 ms	9600 KB	Output is correct
23	Correct	16 ms	9592 KB	Output is correct
24	Correct	17 ms	10020 KB	Output is correct
25	Correct	12 ms	9728 KB	Output is correct
26	Correct	13 ms	9600 KB	Output is correct
27	Correct	296 ms	151636 KB	Output is correct
28	Correct	28 ms	26368 KB	Output is correct
29	Correct	21 ms	13304 KB	Output is correct
30	Correct	3 ms	896 KB	Output is correct
31	Correct	202 ms	125688 KB	Output is correct
32	Correct	252 ms	151544 KB	Output is correct
33	Correct	274 ms	151000 KB	Output is correct
34	Correct	253 ms	145656 KB	Output is correct
35	Correct	232 ms	151520 KB	Output is correct
36	Correct	230 ms	151032 KB	Output is correct
37	Correct	273 ms	151544 KB	Output is correct
38	Correct	219 ms	124968 KB	Output is correct
39	Correct	195 ms	125176 KB	Output is correct