Submission #231795

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
231795	2020-05-14T19:19:55 Z	peijar	Bitaro the Brave (JOI19_ho_t1)	C++17	100 / 100	264 ms	158972 KB

joi2019_ho_t1

#include <bits/stdc++.h>
using namespace std;

#define SZ(v) ((int)(v).size())
using ll = long long;

const int MAXDIM = 3001;
char grid[MAXDIM][MAXDIM];
ll suffix_row[MAXDIM][MAXDIM];
ll suffix_col[MAXDIM][MAXDIM];

int main(void)
{
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);

	int nb_lig, nb_col;
	cin >> nb_lig >> nb_col;
	for (int lig(0); lig < nb_lig; ++lig)
		for (int col(0); col < nb_col; ++col)	
			cin >> grid[lig][col];

	for (int lig(nb_lig-1); lig >= 0; --lig)
		for (int col(nb_col-1); col >= 0; --col)
		{
			suffix_row[lig][col] = suffix_row[lig][col+1] + (grid[lig][col] == 'O');
			suffix_col[lig][col] = suffix_col[lig+1][col] + (grid[lig][col] == 'I');
		}
	ll ans(0);
	for (int lig(0); lig < nb_lig; ++lig)
		for (int col(0); col < nb_col; ++col)
			if (grid[lig][col] == 'J')
				ans += suffix_row[lig][col] * suffix_col[lig][col];
	cout << ans << endl;
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	5 ms	512 KB	Output is correct
5	Correct	6 ms	1712 KB	Output is correct
6	Correct	6 ms	1664 KB	Output is correct
7	Correct	5 ms	1536 KB	Output is correct
8	Correct	5 ms	1536 KB	Output is correct
9	Correct	5 ms	1536 KB	Output is correct
10	Correct	5 ms	1408 KB	Output is correct
11	Correct	5 ms	1536 KB	Output is correct
12	Correct	5 ms	1664 KB	Output is correct
13	Correct	5 ms	1408 KB	Output is correct

Subtask #2

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	5 ms	512 KB	Output is correct
5	Correct	6 ms	1712 KB	Output is correct
6	Correct	6 ms	1664 KB	Output is correct
7	Correct	5 ms	1536 KB	Output is correct
8	Correct	5 ms	1536 KB	Output is correct
9	Correct	5 ms	1536 KB	Output is correct
10	Correct	5 ms	1408 KB	Output is correct
11	Correct	5 ms	1536 KB	Output is correct
12	Correct	5 ms	1664 KB	Output is correct
13	Correct	5 ms	1408 KB	Output is correct
14	Correct	13 ms	8832 KB	Output is correct
15	Correct	7 ms	5120 KB	Output is correct
16	Correct	9 ms	5248 KB	Output is correct
17	Correct	5 ms	512 KB	Output is correct
18	Correct	14 ms	9728 KB	Output is correct
19	Correct	14 ms	9600 KB	Output is correct
20	Correct	13 ms	9600 KB	Output is correct
21	Correct	15 ms	9984 KB	Output is correct
22	Correct	13 ms	9856 KB	Output is correct
23	Correct	13 ms	9856 KB	Output is correct
24	Correct	14 ms	9984 KB	Output is correct
25	Correct	13 ms	9856 KB	Output is correct
26	Correct	14 ms	9788 KB	Output is correct

Subtask #3

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	5 ms	512 KB	Output is correct
5	Correct	6 ms	1712 KB	Output is correct
6	Correct	6 ms	1664 KB	Output is correct
7	Correct	5 ms	1536 KB	Output is correct
8	Correct	5 ms	1536 KB	Output is correct
9	Correct	5 ms	1536 KB	Output is correct
10	Correct	5 ms	1408 KB	Output is correct
11	Correct	5 ms	1536 KB	Output is correct
12	Correct	5 ms	1664 KB	Output is correct
13	Correct	5 ms	1408 KB	Output is correct
14	Correct	13 ms	8832 KB	Output is correct
15	Correct	7 ms	5120 KB	Output is correct
16	Correct	9 ms	5248 KB	Output is correct
17	Correct	5 ms	512 KB	Output is correct
18	Correct	14 ms	9728 KB	Output is correct
19	Correct	14 ms	9600 KB	Output is correct
20	Correct	13 ms	9600 KB	Output is correct
21	Correct	15 ms	9984 KB	Output is correct
22	Correct	13 ms	9856 KB	Output is correct
23	Correct	13 ms	9856 KB	Output is correct
24	Correct	14 ms	9984 KB	Output is correct
25	Correct	13 ms	9856 KB	Output is correct
26	Correct	14 ms	9788 KB	Output is correct
27	Correct	240 ms	158436 KB	Output is correct
28	Correct	19 ms	26368 KB	Output is correct
29	Correct	22 ms	13952 KB	Output is correct
30	Correct	5 ms	896 KB	Output is correct
31	Correct	194 ms	131320 KB	Output is correct
32	Correct	221 ms	158840 KB	Output is correct
33	Correct	214 ms	158328 KB	Output is correct
34	Correct	216 ms	152184 KB	Output is correct
35	Correct	223 ms	158840 KB	Output is correct
36	Correct	218 ms	158328 KB	Output is correct
37	Correct	264 ms	158972 KB	Output is correct
38	Correct	167 ms	130808 KB	Output is correct
39	Correct	162 ms	130680 KB	Output is correct