답안 #121037

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
121037	2019-06-26T03:47:04 Z	김현수(#3331)	Bitaro the Brave (JOI19_ho_t1)	C++14	100 / 100	149 ms	79820 KB

joi2019_ho_t1

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

const int N = 3005;

int n, m, x[N][N], y[N][N];
char a[N][N];

long long ans;

int main()
{
	scanf("%d%d",&n,&m);
	for(int i=1;i<=n;i++) {
		scanf("%s", a[i]+1);
		for(int j=m;j>=1;j--) {
			x[i][j] = x[i][j+1] + (a[i][j] == 'O');
			y[i][j] = (a[i][j] == 'I');
		}
	}
	for(int i=n;i>=1;i--) {
		for(int j=1;j<=m;j++) {
			y[i][j] += y[i+1][j];
			if(a[i][j] == 'J') ans += 1ll * x[i][j] * y[i][j];
		}
	}
	printf("%lld\n", ans);
}

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]+1);
   ~~~~~^~~~~~~~~~~~~~

Subtask #1

20.0 / 20.0

#	결과	실행 시간	메모리	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	2 ms	1536 KB	Output is correct
7	Correct	2 ms	1408 KB	Output is correct
8	Correct	3 ms	1508 KB	Output is correct
9	Correct	2 ms	1536 KB	Output is correct
10	Correct	2 ms	1408 KB	Output is correct
11	Correct	3 ms	1536 KB	Output is correct
12	Correct	3 ms	1536 KB	Output is correct
13	Correct	3 ms	1408 KB	Output is correct

Subtask #2

30.0 / 30.0

#	결과	실행 시간	메모리	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	2 ms	1536 KB	Output is correct
7	Correct	2 ms	1408 KB	Output is correct
8	Correct	3 ms	1508 KB	Output is correct
9	Correct	2 ms	1536 KB	Output is correct
10	Correct	2 ms	1408 KB	Output is correct
11	Correct	3 ms	1536 KB	Output is correct
12	Correct	3 ms	1536 KB	Output is correct
13	Correct	3 ms	1408 KB	Output is correct
14	Correct	9 ms	7296 KB	Output is correct
15	Correct	6 ms	4944 KB	Output is correct
16	Correct	5 ms	4224 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	10 ms	7808 KB	Output is correct
19	Correct	8 ms	7680 KB	Output is correct
20	Correct	9 ms	7660 KB	Output is correct
21	Correct	10 ms	7936 KB	Output is correct
22	Correct	10 ms	7680 KB	Output is correct
23	Correct	8 ms	7552 KB	Output is correct
24	Correct	10 ms	7780 KB	Output is correct
25	Correct	10 ms	7732 KB	Output is correct
26	Correct	9 ms	7592 KB	Output is correct

Subtask #3

50.0 / 50.0

#	결과	실행 시간	메모리	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	2 ms	1536 KB	Output is correct
7	Correct	2 ms	1408 KB	Output is correct
8	Correct	3 ms	1508 KB	Output is correct
9	Correct	2 ms	1536 KB	Output is correct
10	Correct	2 ms	1408 KB	Output is correct
11	Correct	3 ms	1536 KB	Output is correct
12	Correct	3 ms	1536 KB	Output is correct
13	Correct	3 ms	1408 KB	Output is correct
14	Correct	9 ms	7296 KB	Output is correct
15	Correct	6 ms	4944 KB	Output is correct
16	Correct	5 ms	4224 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	10 ms	7808 KB	Output is correct
19	Correct	8 ms	7680 KB	Output is correct
20	Correct	9 ms	7660 KB	Output is correct
21	Correct	10 ms	7936 KB	Output is correct
22	Correct	10 ms	7680 KB	Output is correct
23	Correct	8 ms	7552 KB	Output is correct
24	Correct	10 ms	7780 KB	Output is correct
25	Correct	10 ms	7732 KB	Output is correct
26	Correct	9 ms	7592 KB	Output is correct
27	Correct	139 ms	79756 KB	Output is correct
28	Correct	22 ms	25960 KB	Output is correct
29	Correct	10 ms	7160 KB	Output is correct
30	Correct	2 ms	640 KB	Output is correct
31	Correct	107 ms	66432 KB	Output is correct
32	Correct	116 ms	79768 KB	Output is correct
33	Correct	110 ms	79496 KB	Output is correct
34	Correct	126 ms	77204 KB	Output is correct
35	Correct	118 ms	79736 KB	Output is correct
36	Correct	113 ms	79508 KB	Output is correct
37	Correct	149 ms	79820 KB	Output is correct
38	Correct	88 ms	66504 KB	Output is correct
39	Correct	85 ms	66252 KB	Output is correct