/*DavitMarg*/
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <cstring>
#include <map>
#include <unordered_map>
#include <set>
#include <queue>
#include <iomanip>
#include <bitset>
#include <stack>
#include <cassert>
#include <iterator>
#include <fstream>
#define mod 1000000007ll
#define LL long long
#define LD long double
#define MP make_pair
#define PB push_back
#define all(v) v.begin(), v.end()
#define fastIO ios::sync_with_stdio(false); cin.tie(0)
using namespace std;
const int N = 3005;
int n, m;
char a[N][N];
LL ans = 0, O[N][N], I[N][N];
int main()
{
fastIO;
cin >> n >> m;
for (int i = 1; i <= n; i++)
for (int j = 1; j <= m; j++)
cin >> a[i][j];
for (int i = n; i >= 1; i--)
for (int j = m; j >= 1; j--)
{
O[i][j] = O[i][j + 1];
I[i][j] = I[i + 1][j];
if (a[i][j] == 'O')
O[i][j]++;
if (a[i][j] == 'I')
I[i][j]++;
if (a[i][j] == 'J')
ans += O[i][j] * I[i][j];
}
cout << ans << endl;
return 0;
}
/*
*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
512 KB |
Output is correct |
5 |
Correct |
5 ms |
1664 KB |
Output is correct |
6 |
Correct |
5 ms |
1536 KB |
Output is correct |
7 |
Correct |
6 ms |
1536 KB |
Output is correct |
8 |
Correct |
5 ms |
1664 KB |
Output is correct |
9 |
Correct |
5 ms |
1536 KB |
Output is correct |
10 |
Correct |
5 ms |
1536 KB |
Output is correct |
11 |
Correct |
5 ms |
1664 KB |
Output is correct |
12 |
Correct |
5 ms |
1536 KB |
Output is correct |
13 |
Correct |
5 ms |
1536 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
512 KB |
Output is correct |
5 |
Correct |
5 ms |
1664 KB |
Output is correct |
6 |
Correct |
5 ms |
1536 KB |
Output is correct |
7 |
Correct |
6 ms |
1536 KB |
Output is correct |
8 |
Correct |
5 ms |
1664 KB |
Output is correct |
9 |
Correct |
5 ms |
1536 KB |
Output is correct |
10 |
Correct |
5 ms |
1536 KB |
Output is correct |
11 |
Correct |
5 ms |
1664 KB |
Output is correct |
12 |
Correct |
5 ms |
1536 KB |
Output is correct |
13 |
Correct |
5 ms |
1536 KB |
Output is correct |
14 |
Correct |
12 ms |
9088 KB |
Output is correct |
15 |
Correct |
7 ms |
5120 KB |
Output is correct |
16 |
Correct |
9 ms |
5376 KB |
Output is correct |
17 |
Correct |
5 ms |
512 KB |
Output is correct |
18 |
Correct |
14 ms |
9984 KB |
Output is correct |
19 |
Correct |
13 ms |
9856 KB |
Output is correct |
20 |
Correct |
13 ms |
9856 KB |
Output is correct |
21 |
Correct |
15 ms |
9984 KB |
Output is correct |
22 |
Correct |
13 ms |
9856 KB |
Output is correct |
23 |
Correct |
13 ms |
9856 KB |
Output is correct |
24 |
Correct |
14 ms |
9984 KB |
Output is correct |
25 |
Correct |
13 ms |
9856 KB |
Output is correct |
26 |
Correct |
13 ms |
9856 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
512 KB |
Output is correct |
5 |
Correct |
5 ms |
1664 KB |
Output is correct |
6 |
Correct |
5 ms |
1536 KB |
Output is correct |
7 |
Correct |
6 ms |
1536 KB |
Output is correct |
8 |
Correct |
5 ms |
1664 KB |
Output is correct |
9 |
Correct |
5 ms |
1536 KB |
Output is correct |
10 |
Correct |
5 ms |
1536 KB |
Output is correct |
11 |
Correct |
5 ms |
1664 KB |
Output is correct |
12 |
Correct |
5 ms |
1536 KB |
Output is correct |
13 |
Correct |
5 ms |
1536 KB |
Output is correct |
14 |
Correct |
12 ms |
9088 KB |
Output is correct |
15 |
Correct |
7 ms |
5120 KB |
Output is correct |
16 |
Correct |
9 ms |
5376 KB |
Output is correct |
17 |
Correct |
5 ms |
512 KB |
Output is correct |
18 |
Correct |
14 ms |
9984 KB |
Output is correct |
19 |
Correct |
13 ms |
9856 KB |
Output is correct |
20 |
Correct |
13 ms |
9856 KB |
Output is correct |
21 |
Correct |
15 ms |
9984 KB |
Output is correct |
22 |
Correct |
13 ms |
9856 KB |
Output is correct |
23 |
Correct |
13 ms |
9856 KB |
Output is correct |
24 |
Correct |
14 ms |
9984 KB |
Output is correct |
25 |
Correct |
13 ms |
9856 KB |
Output is correct |
26 |
Correct |
13 ms |
9856 KB |
Output is correct |
27 |
Correct |
244 ms |
158588 KB |
Output is correct |
28 |
Correct |
18 ms |
26368 KB |
Output is correct |
29 |
Correct |
24 ms |
13952 KB |
Output is correct |
30 |
Correct |
5 ms |
896 KB |
Output is correct |
31 |
Correct |
183 ms |
131448 KB |
Output is correct |
32 |
Correct |
206 ms |
159064 KB |
Output is correct |
33 |
Correct |
207 ms |
158588 KB |
Output is correct |
34 |
Correct |
211 ms |
152440 KB |
Output is correct |
35 |
Correct |
203 ms |
159124 KB |
Output is correct |
36 |
Correct |
213 ms |
158584 KB |
Output is correct |
37 |
Correct |
249 ms |
159096 KB |
Output is correct |
38 |
Correct |
160 ms |
130808 KB |
Output is correct |
39 |
Correct |
154 ms |
130872 KB |
Output is correct |