n, m = map(int, input().split())
a = [[0 for _ in range(m + 1)] for _ in range(n + 1)]
d1 = [[0 for _ in range(m + 1)] for _ in range(n + 1)]
d2 = [[0 for _ in range(m + 1)] for _ in range(n + 1)]
for i in range(1, n + 1) :
s = input()
for j in range(1, m + 1) :
a[i][j] = 0 if s[j - 1] == 'J' else 1 if s[j - 1] == 'O' else 2
ans = 0
for i in range(n, 0, -1) :
for j in range(m, 0, -1) :
d1[i][j] = (a[i][j] == 1) + (0 if j == m else d1[i][j + 1])
d2[i][j] = (a[i][j] == 2) + (0 if i == n else d2[i + 1][j])
if a[i][j] == 0 :
ans += d1[i][j] * d2[i][j]
print(ans)
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
2908 KB |
Output is correct |
2 |
Correct |
10 ms |
3032 KB |
Output is correct |
3 |
Correct |
10 ms |
2876 KB |
Output is correct |
4 |
Correct |
10 ms |
2852 KB |
Output is correct |
5 |
Correct |
18 ms |
3580 KB |
Output is correct |
6 |
Correct |
16 ms |
3108 KB |
Output is correct |
7 |
Correct |
17 ms |
3176 KB |
Output is correct |
8 |
Correct |
18 ms |
3164 KB |
Output is correct |
9 |
Correct |
18 ms |
3276 KB |
Output is correct |
10 |
Correct |
17 ms |
3164 KB |
Output is correct |
11 |
Correct |
20 ms |
3060 KB |
Output is correct |
12 |
Correct |
16 ms |
3164 KB |
Output is correct |
13 |
Correct |
18 ms |
3284 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
2908 KB |
Output is correct |
2 |
Correct |
10 ms |
3032 KB |
Output is correct |
3 |
Correct |
10 ms |
2876 KB |
Output is correct |
4 |
Correct |
10 ms |
2852 KB |
Output is correct |
5 |
Correct |
18 ms |
3580 KB |
Output is correct |
6 |
Correct |
16 ms |
3108 KB |
Output is correct |
7 |
Correct |
17 ms |
3176 KB |
Output is correct |
8 |
Correct |
18 ms |
3164 KB |
Output is correct |
9 |
Correct |
18 ms |
3276 KB |
Output is correct |
10 |
Correct |
17 ms |
3164 KB |
Output is correct |
11 |
Correct |
20 ms |
3060 KB |
Output is correct |
12 |
Correct |
16 ms |
3164 KB |
Output is correct |
13 |
Correct |
18 ms |
3284 KB |
Output is correct |
14 |
Correct |
176 ms |
7764 KB |
Output is correct |
15 |
Correct |
19 ms |
3164 KB |
Output is correct |
16 |
Correct |
117 ms |
6564 KB |
Output is correct |
17 |
Correct |
12 ms |
2908 KB |
Output is correct |
18 |
Correct |
233 ms |
9280 KB |
Output is correct |
19 |
Correct |
191 ms |
11348 KB |
Output is correct |
20 |
Correct |
203 ms |
9044 KB |
Output is correct |
21 |
Correct |
215 ms |
9308 KB |
Output is correct |
22 |
Correct |
196 ms |
10568 KB |
Output is correct |
23 |
Correct |
200 ms |
9052 KB |
Output is correct |
24 |
Correct |
201 ms |
9268 KB |
Output is correct |
25 |
Correct |
200 ms |
11860 KB |
Output is correct |
26 |
Correct |
200 ms |
9148 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
2908 KB |
Output is correct |
2 |
Correct |
10 ms |
3032 KB |
Output is correct |
3 |
Correct |
10 ms |
2876 KB |
Output is correct |
4 |
Correct |
10 ms |
2852 KB |
Output is correct |
5 |
Correct |
18 ms |
3580 KB |
Output is correct |
6 |
Correct |
16 ms |
3108 KB |
Output is correct |
7 |
Correct |
17 ms |
3176 KB |
Output is correct |
8 |
Correct |
18 ms |
3164 KB |
Output is correct |
9 |
Correct |
18 ms |
3276 KB |
Output is correct |
10 |
Correct |
17 ms |
3164 KB |
Output is correct |
11 |
Correct |
20 ms |
3060 KB |
Output is correct |
12 |
Correct |
16 ms |
3164 KB |
Output is correct |
13 |
Correct |
18 ms |
3284 KB |
Output is correct |
14 |
Correct |
176 ms |
7764 KB |
Output is correct |
15 |
Correct |
19 ms |
3164 KB |
Output is correct |
16 |
Correct |
117 ms |
6564 KB |
Output is correct |
17 |
Correct |
12 ms |
2908 KB |
Output is correct |
18 |
Correct |
233 ms |
9280 KB |
Output is correct |
19 |
Correct |
191 ms |
11348 KB |
Output is correct |
20 |
Correct |
203 ms |
9044 KB |
Output is correct |
21 |
Correct |
215 ms |
9308 KB |
Output is correct |
22 |
Correct |
196 ms |
10568 KB |
Output is correct |
23 |
Correct |
200 ms |
9052 KB |
Output is correct |
24 |
Correct |
201 ms |
9268 KB |
Output is correct |
25 |
Correct |
200 ms |
11860 KB |
Output is correct |
26 |
Correct |
200 ms |
9148 KB |
Output is correct |
27 |
Execution timed out |
1045 ms |
206988 KB |
Time limit exceeded |
28 |
Halted |
0 ms |
0 KB |
- |