#include <iostream>
using namespace std;
#define ll long long
string stage[3001];
ll psum1[3005][3005], psum2[3005][3005];
int main()
{
ios::sync_with_stdio(0);
cin.tie(0);
int h, w;
cin >> h >> w;
for(int i = 0; i < h; i++)
cin >> stage[i];
for(int i = h-1; i >= 0; i--)
for(int j = w-1; j >= 0; j--)
{
psum1[i][j] = psum1[i][j+1];
if(stage[i][j] == 'O')
psum1[i][j]++;
psum2[j][i] = psum2[j][i+1];
if(stage[i][j] == 'I')
psum2[j][i]++;
}
ll ans = 0;
for(int i = 0; i < h; i++)
for(int j = 0; j < w; j++)
if(stage[i][j] == 'J')
ans += psum1[i][j]*psum2[j][i];
cout << ans << '\n';
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
1624 KB |
Output is correct |
6 |
Correct |
1 ms |
1372 KB |
Output is correct |
7 |
Correct |
1 ms |
1372 KB |
Output is correct |
8 |
Correct |
1 ms |
1372 KB |
Output is correct |
9 |
Correct |
1 ms |
1372 KB |
Output is correct |
10 |
Correct |
1 ms |
1372 KB |
Output is correct |
11 |
Correct |
1 ms |
1332 KB |
Output is correct |
12 |
Correct |
2 ms |
1372 KB |
Output is correct |
13 |
Correct |
1 ms |
1372 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
1624 KB |
Output is correct |
6 |
Correct |
1 ms |
1372 KB |
Output is correct |
7 |
Correct |
1 ms |
1372 KB |
Output is correct |
8 |
Correct |
1 ms |
1372 KB |
Output is correct |
9 |
Correct |
1 ms |
1372 KB |
Output is correct |
10 |
Correct |
1 ms |
1372 KB |
Output is correct |
11 |
Correct |
1 ms |
1332 KB |
Output is correct |
12 |
Correct |
2 ms |
1372 KB |
Output is correct |
13 |
Correct |
1 ms |
1372 KB |
Output is correct |
14 |
Correct |
6 ms |
10552 KB |
Output is correct |
15 |
Correct |
1 ms |
2140 KB |
Output is correct |
16 |
Correct |
4 ms |
7256 KB |
Output is correct |
17 |
Correct |
1 ms |
1628 KB |
Output is correct |
18 |
Correct |
8 ms |
11692 KB |
Output is correct |
19 |
Correct |
5 ms |
11356 KB |
Output is correct |
20 |
Correct |
6 ms |
10244 KB |
Output is correct |
21 |
Correct |
7 ms |
11604 KB |
Output is correct |
22 |
Correct |
6 ms |
11328 KB |
Output is correct |
23 |
Correct |
5 ms |
10076 KB |
Output is correct |
24 |
Correct |
8 ms |
11612 KB |
Output is correct |
25 |
Correct |
5 ms |
11324 KB |
Output is correct |
26 |
Correct |
5 ms |
10044 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
1624 KB |
Output is correct |
6 |
Correct |
1 ms |
1372 KB |
Output is correct |
7 |
Correct |
1 ms |
1372 KB |
Output is correct |
8 |
Correct |
1 ms |
1372 KB |
Output is correct |
9 |
Correct |
1 ms |
1372 KB |
Output is correct |
10 |
Correct |
1 ms |
1372 KB |
Output is correct |
11 |
Correct |
1 ms |
1332 KB |
Output is correct |
12 |
Correct |
2 ms |
1372 KB |
Output is correct |
13 |
Correct |
1 ms |
1372 KB |
Output is correct |
14 |
Correct |
6 ms |
10552 KB |
Output is correct |
15 |
Correct |
1 ms |
2140 KB |
Output is correct |
16 |
Correct |
4 ms |
7256 KB |
Output is correct |
17 |
Correct |
1 ms |
1628 KB |
Output is correct |
18 |
Correct |
8 ms |
11692 KB |
Output is correct |
19 |
Correct |
5 ms |
11356 KB |
Output is correct |
20 |
Correct |
6 ms |
10244 KB |
Output is correct |
21 |
Correct |
7 ms |
11604 KB |
Output is correct |
22 |
Correct |
6 ms |
11328 KB |
Output is correct |
23 |
Correct |
5 ms |
10076 KB |
Output is correct |
24 |
Correct |
8 ms |
11612 KB |
Output is correct |
25 |
Correct |
5 ms |
11324 KB |
Output is correct |
26 |
Correct |
5 ms |
10044 KB |
Output is correct |
27 |
Correct |
184 ms |
155824 KB |
Output is correct |
28 |
Correct |
5 ms |
10340 KB |
Output is correct |
29 |
Correct |
14 ms |
23052 KB |
Output is correct |
30 |
Correct |
5 ms |
10076 KB |
Output is correct |
31 |
Correct |
138 ms |
130712 KB |
Output is correct |
32 |
Correct |
154 ms |
159432 KB |
Output is correct |
33 |
Correct |
141 ms |
159684 KB |
Output is correct |
34 |
Correct |
149 ms |
142276 KB |
Output is correct |
35 |
Correct |
148 ms |
159440 KB |
Output is correct |
36 |
Correct |
150 ms |
159848 KB |
Output is correct |
37 |
Correct |
186 ms |
160188 KB |
Output is correct |
38 |
Correct |
97 ms |
130216 KB |
Output is correct |
39 |
Correct |
106 ms |
130452 KB |
Output is correct |