답안 #154200

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
154200	2019-09-18T22:01:49 Z	ivandasfs	Bitaro the Brave (JOI19_ho_t1)	C++14	100 / 100	173 ms	88460 KB

joi2019_ho_t1

#include <iostream>
#include <cstdio>

using namespace std;

char a[3005][3005];

int red[3005][3005];
int stu[3005][3005];

int main() {
	int n,m;
	scanf("%d%d", &n, &m);
	for (int i=0 ; i<n ; i++) {
		scanf("%s", a[i]);
	}
	long long sol = 0;
	for (int i=n-1 ; i>=0 ; i--) {
		for (int j=m-1 ; j>=0 ; j--) {
			red[i][j] = red[i][j+1] + (a[i][j] == 'O');
			stu[i][j] = stu[i+1][j] + (a[i][j] == 'I');
			if (a[i][j] == 'J') sol += red[i][j] * stu[i][j];
		}
	}
	printf("%lld\n", sol);
	return 0;
}

Compilation message

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:13:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~
joi2019_ho_t1.cpp:15:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s", a[i]);
   ~~~~~^~~~~~~~~~~~

Subtask #1

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	4 ms	1528 KB	Output is correct
6	Correct	4 ms	1528 KB	Output is correct
7	Correct	3 ms	1400 KB	Output is correct
8	Correct	4 ms	1528 KB	Output is correct
9	Correct	3 ms	1528 KB	Output is correct
10	Correct	3 ms	1400 KB	Output is correct
11	Correct	4 ms	1532 KB	Output is correct
12	Correct	4 ms	1528 KB	Output is correct
13	Correct	4 ms	1400 KB	Output is correct

Subtask #2

30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	4 ms	1528 KB	Output is correct
6	Correct	4 ms	1528 KB	Output is correct
7	Correct	3 ms	1400 KB	Output is correct
8	Correct	4 ms	1528 KB	Output is correct
9	Correct	3 ms	1528 KB	Output is correct
10	Correct	3 ms	1400 KB	Output is correct
11	Correct	4 ms	1532 KB	Output is correct
12	Correct	4 ms	1528 KB	Output is correct
13	Correct	4 ms	1400 KB	Output is correct
14	Correct	10 ms	7544 KB	Output is correct
15	Correct	7 ms	5112 KB	Output is correct
16	Correct	7 ms	4348 KB	Output is correct
17	Correct	3 ms	504 KB	Output is correct
18	Correct	20 ms	7944 KB	Output is correct
19	Correct	10 ms	7928 KB	Output is correct
20	Correct	12 ms	7848 KB	Output is correct
21	Correct	11 ms	7928 KB	Output is correct
22	Correct	10 ms	7932 KB	Output is correct
23	Correct	10 ms	7800 KB	Output is correct
24	Correct	11 ms	7932 KB	Output is correct
25	Correct	13 ms	7928 KB	Output is correct
26	Correct	11 ms	7800 KB	Output is correct

Subtask #3

50.0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	4 ms	1528 KB	Output is correct
6	Correct	4 ms	1528 KB	Output is correct
7	Correct	3 ms	1400 KB	Output is correct
8	Correct	4 ms	1528 KB	Output is correct
9	Correct	3 ms	1528 KB	Output is correct
10	Correct	3 ms	1400 KB	Output is correct
11	Correct	4 ms	1532 KB	Output is correct
12	Correct	4 ms	1528 KB	Output is correct
13	Correct	4 ms	1400 KB	Output is correct
14	Correct	10 ms	7544 KB	Output is correct
15	Correct	7 ms	5112 KB	Output is correct
16	Correct	7 ms	4348 KB	Output is correct
17	Correct	3 ms	504 KB	Output is correct
18	Correct	20 ms	7944 KB	Output is correct
19	Correct	10 ms	7928 KB	Output is correct
20	Correct	12 ms	7848 KB	Output is correct
21	Correct	11 ms	7928 KB	Output is correct
22	Correct	10 ms	7932 KB	Output is correct
23	Correct	10 ms	7800 KB	Output is correct
24	Correct	11 ms	7932 KB	Output is correct
25	Correct	13 ms	7928 KB	Output is correct
26	Correct	11 ms	7800 KB	Output is correct
27	Correct	136 ms	88028 KB	Output is correct
28	Correct	28 ms	25988 KB	Output is correct
29	Correct	12 ms	7800 KB	Output is correct
30	Correct	3 ms	632 KB	Output is correct
31	Correct	108 ms	72608 KB	Output is correct
32	Correct	123 ms	88388 KB	Output is correct
33	Correct	130 ms	88156 KB	Output is correct
34	Correct	139 ms	84216 KB	Output is correct
35	Correct	118 ms	88460 KB	Output is correct
36	Correct	120 ms	88244 KB	Output is correct
37	Correct	173 ms	88440 KB	Output is correct
38	Correct	91 ms	72588 KB	Output is correct
39	Correct	91 ms	72312 KB	Output is correct