Submission #706479

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
706479	2023-03-06T17:09:17 Z	rainboy	Bitaro the Brave (JOI19_ho_t1)	C	100 / 100	227 ms	88340 KB

joi2019_ho_t1

#include <stdio.h>

#define N	3000
#define M	3000

int main() {
	static char cc[N][M + 1];
	static int kko[N][M], kki[N][M];
	int n, m, i, j, k;
	long long ans;

	scanf("%d%d", &n, &m);
	for (i = 0; i < n; i++)
		scanf("%s", cc[i]);
	for (i = 0; i < n; i++)
		for (j = m - 1, k = 0; j >= 0; j--) {
			if (cc[i][j] == 'O')
				k++;
			kko[i][j] = k;
		}
	for (j = 0; j < m; j++)
		for (i = n - 1, k = 0; i >= 0; i--) {
			if (cc[i][j] == 'I')
				k++;
			kki[i][j] = k;
		}
	ans = 0;
	for (i = 0; i < n; i++)
		for (j = 0; j < m; j++)
			if (cc[i][j] == 'J')
				ans += kko[i][j] * kki[i][j];
	printf("%lld\n", ans);
	return 0;
}

Compilation message

joi2019_ho_t1.c: In function 'main':
joi2019_ho_t1.c:12:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |  scanf("%d%d", &n, &m);
      |  ^~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t1.c:14:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |   scanf("%s", cc[i]);
      |   ^~~~~~~~~~~~~~~~~~

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	1 ms	1448 KB	Output is correct
6	Correct	1 ms	1444 KB	Output is correct
7	Correct	1 ms	1364 KB	Output is correct
8	Correct	1 ms	1364 KB	Output is correct
9	Correct	1 ms	1444 KB	Output is correct
10	Correct	1 ms	1364 KB	Output is correct
11	Correct	1 ms	1456 KB	Output is correct
12	Correct	1 ms	1364 KB	Output is correct
13	Correct	1 ms	1364 KB	Output is correct

Subtask #2

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	1 ms	1448 KB	Output is correct
6	Correct	1 ms	1444 KB	Output is correct
7	Correct	1 ms	1364 KB	Output is correct
8	Correct	1 ms	1364 KB	Output is correct
9	Correct	1 ms	1444 KB	Output is correct
10	Correct	1 ms	1364 KB	Output is correct
11	Correct	1 ms	1456 KB	Output is correct
12	Correct	1 ms	1364 KB	Output is correct
13	Correct	1 ms	1364 KB	Output is correct
14	Correct	6 ms	7380 KB	Output is correct
15	Correct	2 ms	4904 KB	Output is correct
16	Correct	3 ms	4268 KB	Output is correct
17	Correct	1 ms	420 KB	Output is correct
18	Correct	6 ms	7968 KB	Output is correct
19	Correct	5 ms	7856 KB	Output is correct
20	Correct	5 ms	7728 KB	Output is correct
21	Correct	6 ms	7892 KB	Output is correct
22	Correct	6 ms	7764 KB	Output is correct
23	Correct	7 ms	7764 KB	Output is correct
24	Correct	6 ms	7892 KB	Output is correct
25	Correct	5 ms	7864 KB	Output is correct
26	Correct	6 ms	7720 KB	Output is correct

Subtask #3

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	1 ms	1448 KB	Output is correct
6	Correct	1 ms	1444 KB	Output is correct
7	Correct	1 ms	1364 KB	Output is correct
8	Correct	1 ms	1364 KB	Output is correct
9	Correct	1 ms	1444 KB	Output is correct
10	Correct	1 ms	1364 KB	Output is correct
11	Correct	1 ms	1456 KB	Output is correct
12	Correct	1 ms	1364 KB	Output is correct
13	Correct	1 ms	1364 KB	Output is correct
14	Correct	6 ms	7380 KB	Output is correct
15	Correct	2 ms	4904 KB	Output is correct
16	Correct	3 ms	4268 KB	Output is correct
17	Correct	1 ms	420 KB	Output is correct
18	Correct	6 ms	7968 KB	Output is correct
19	Correct	5 ms	7856 KB	Output is correct
20	Correct	5 ms	7728 KB	Output is correct
21	Correct	6 ms	7892 KB	Output is correct
22	Correct	6 ms	7764 KB	Output is correct
23	Correct	7 ms	7764 KB	Output is correct
24	Correct	6 ms	7892 KB	Output is correct
25	Correct	5 ms	7864 KB	Output is correct
26	Correct	6 ms	7720 KB	Output is correct
27	Correct	227 ms	87828 KB	Output is correct
28	Correct	14 ms	25940 KB	Output is correct
29	Correct	8 ms	7752 KB	Output is correct
30	Correct	1 ms	468 KB	Output is correct
31	Correct	158 ms	72360 KB	Output is correct
32	Correct	204 ms	88340 KB	Output is correct
33	Correct	194 ms	88024 KB	Output is correct
34	Correct	184 ms	84020 KB	Output is correct
35	Correct	220 ms	88164 KB	Output is correct
36	Correct	190 ms	87924 KB	Output is correct
37	Correct	227 ms	88316 KB	Output is correct
38	Correct	146 ms	72376 KB	Output is correct
39	Correct	141 ms	72100 KB	Output is correct