#include <iostream>
using namespace std;
int v[3002][3002];
int dp[3002][3002];
int dp2[3002][3002];
int main()
{
ios::sync_with_stdio(false); cin.tie(NULL);
int H, W; cin >> H >> W;
for(int i=1;i<=H;i++)
{
string s; cin >> s;
for(int j=1;j<=W;j++)
{
if(s[j-1] == 'J') v[i][j] = 1;
if(s[j-1] == 'O') v[i][j] = 2;
if(s[j-1] == 'I') v[i][j] = 3;
}
}
for(int i=1;i<=H;i++)
{
for(int j=W;j>=1;j--)
{
dp[i][j] = dp[i][j+1];
if(v[i][j] == 2) dp[i][j]++;
}
}
for(int j=1;j<=W;j++)
{
for(int i=H;i>=1;i--)
{
dp2[i][j] = dp2[i+1][j];
if(v[i][j] == 3) dp2[i][j]++;
}
}
long long int ans = 0;
for(int i=1;i<=H;i++)
{
for(int j=1;j<=W;j++)
{
if(v[i][j] == 1) ans += dp[i][j] * dp2[i][j];
}
}
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
324 KB |
Output is correct |
4 |
Correct |
1 ms |
456 KB |
Output is correct |
5 |
Correct |
2 ms |
1612 KB |
Output is correct |
6 |
Correct |
1 ms |
1612 KB |
Output is correct |
7 |
Correct |
1 ms |
1484 KB |
Output is correct |
8 |
Correct |
2 ms |
1612 KB |
Output is correct |
9 |
Correct |
2 ms |
1612 KB |
Output is correct |
10 |
Correct |
1 ms |
1484 KB |
Output is correct |
11 |
Correct |
2 ms |
1612 KB |
Output is correct |
12 |
Correct |
1 ms |
1612 KB |
Output is correct |
13 |
Correct |
1 ms |
1484 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
324 KB |
Output is correct |
4 |
Correct |
1 ms |
456 KB |
Output is correct |
5 |
Correct |
2 ms |
1612 KB |
Output is correct |
6 |
Correct |
1 ms |
1612 KB |
Output is correct |
7 |
Correct |
1 ms |
1484 KB |
Output is correct |
8 |
Correct |
2 ms |
1612 KB |
Output is correct |
9 |
Correct |
2 ms |
1612 KB |
Output is correct |
10 |
Correct |
1 ms |
1484 KB |
Output is correct |
11 |
Correct |
2 ms |
1612 KB |
Output is correct |
12 |
Correct |
1 ms |
1612 KB |
Output is correct |
13 |
Correct |
1 ms |
1484 KB |
Output is correct |
14 |
Correct |
10 ms |
8784 KB |
Output is correct |
15 |
Correct |
3 ms |
5452 KB |
Output is correct |
16 |
Correct |
5 ms |
5068 KB |
Output is correct |
17 |
Correct |
1 ms |
460 KB |
Output is correct |
18 |
Correct |
12 ms |
9548 KB |
Output is correct |
19 |
Correct |
9 ms |
9292 KB |
Output is correct |
20 |
Correct |
8 ms |
9292 KB |
Output is correct |
21 |
Correct |
14 ms |
9548 KB |
Output is correct |
22 |
Correct |
11 ms |
9404 KB |
Output is correct |
23 |
Correct |
8 ms |
9292 KB |
Output is correct |
24 |
Correct |
12 ms |
9548 KB |
Output is correct |
25 |
Correct |
8 ms |
9420 KB |
Output is correct |
26 |
Correct |
8 ms |
9300 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
324 KB |
Output is correct |
4 |
Correct |
1 ms |
456 KB |
Output is correct |
5 |
Correct |
2 ms |
1612 KB |
Output is correct |
6 |
Correct |
1 ms |
1612 KB |
Output is correct |
7 |
Correct |
1 ms |
1484 KB |
Output is correct |
8 |
Correct |
2 ms |
1612 KB |
Output is correct |
9 |
Correct |
2 ms |
1612 KB |
Output is correct |
10 |
Correct |
1 ms |
1484 KB |
Output is correct |
11 |
Correct |
2 ms |
1612 KB |
Output is correct |
12 |
Correct |
1 ms |
1612 KB |
Output is correct |
13 |
Correct |
1 ms |
1484 KB |
Output is correct |
14 |
Correct |
10 ms |
8784 KB |
Output is correct |
15 |
Correct |
3 ms |
5452 KB |
Output is correct |
16 |
Correct |
5 ms |
5068 KB |
Output is correct |
17 |
Correct |
1 ms |
460 KB |
Output is correct |
18 |
Correct |
12 ms |
9548 KB |
Output is correct |
19 |
Correct |
9 ms |
9292 KB |
Output is correct |
20 |
Correct |
8 ms |
9292 KB |
Output is correct |
21 |
Correct |
14 ms |
9548 KB |
Output is correct |
22 |
Correct |
11 ms |
9404 KB |
Output is correct |
23 |
Correct |
8 ms |
9292 KB |
Output is correct |
24 |
Correct |
12 ms |
9548 KB |
Output is correct |
25 |
Correct |
8 ms |
9420 KB |
Output is correct |
26 |
Correct |
8 ms |
9300 KB |
Output is correct |
27 |
Correct |
409 ms |
114320 KB |
Output is correct |
28 |
Correct |
17 ms |
28748 KB |
Output is correct |
29 |
Correct |
13 ms |
10120 KB |
Output is correct |
30 |
Correct |
2 ms |
588 KB |
Output is correct |
31 |
Correct |
302 ms |
94792 KB |
Output is correct |
32 |
Correct |
331 ms |
114788 KB |
Output is correct |
33 |
Correct |
312 ms |
114460 KB |
Output is correct |
34 |
Correct |
337 ms |
109660 KB |
Output is correct |
35 |
Correct |
331 ms |
114884 KB |
Output is correct |
36 |
Correct |
302 ms |
114500 KB |
Output is correct |
37 |
Correct |
420 ms |
114864 KB |
Output is correct |
38 |
Correct |
221 ms |
94484 KB |
Output is correct |
39 |
Correct |
221 ms |
94160 KB |
Output is correct |