#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pi;
typedef pair<ll,ll> pl;
#define eb emplace_back
#define all(v) v.begin(),v.end()
#define ff first
#define ss second
const ll mxn=3005;
char a[mxn][mxn];
ll on[mxn][mxn],in[mxn][mxn];
int main()
{
ios::sync_with_stdio(0); cin.tie(0);
ll h,w; cin>>h>>w;
for (int i=1;i<=h;i++)
{
for (int j=1;j<=w;j++)
{
cin>>a[i][j];
if (a[i][j]=='O') on[i][j]++;
if (a[i][j]=='I') in[i][j]++;
}
}
for (int i=1;i<=h;i++) for(int j=1;j<=w;j++)
{
on[i][j]+=on[i][j-1];
in[i][j]+=in[i-1][j];
}
ll rt=0;
for (int i=1;i<=h;i++)
for (int j=1;j<=w;j++)
if(a[i][j]=='J')
{
rt+=(on[i][w]-on[i][j])*(in[h][j]-in[i][j]);
}
cout<<rt;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
1492 KB |
Output is correct |
6 |
Correct |
1 ms |
1492 KB |
Output is correct |
7 |
Correct |
1 ms |
1364 KB |
Output is correct |
8 |
Correct |
1 ms |
1492 KB |
Output is correct |
9 |
Correct |
1 ms |
1492 KB |
Output is correct |
10 |
Correct |
1 ms |
1492 KB |
Output is correct |
11 |
Correct |
1 ms |
1492 KB |
Output is correct |
12 |
Correct |
1 ms |
1492 KB |
Output is correct |
13 |
Correct |
1 ms |
1364 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
1492 KB |
Output is correct |
6 |
Correct |
1 ms |
1492 KB |
Output is correct |
7 |
Correct |
1 ms |
1364 KB |
Output is correct |
8 |
Correct |
1 ms |
1492 KB |
Output is correct |
9 |
Correct |
1 ms |
1492 KB |
Output is correct |
10 |
Correct |
1 ms |
1492 KB |
Output is correct |
11 |
Correct |
1 ms |
1492 KB |
Output is correct |
12 |
Correct |
1 ms |
1492 KB |
Output is correct |
13 |
Correct |
1 ms |
1364 KB |
Output is correct |
14 |
Correct |
11 ms |
8956 KB |
Output is correct |
15 |
Correct |
3 ms |
5068 KB |
Output is correct |
16 |
Correct |
5 ms |
5332 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
13 ms |
10008 KB |
Output is correct |
19 |
Correct |
10 ms |
9752 KB |
Output is correct |
20 |
Correct |
9 ms |
9684 KB |
Output is correct |
21 |
Correct |
11 ms |
9940 KB |
Output is correct |
22 |
Correct |
10 ms |
9796 KB |
Output is correct |
23 |
Correct |
9 ms |
9684 KB |
Output is correct |
24 |
Correct |
12 ms |
9984 KB |
Output is correct |
25 |
Correct |
8 ms |
9712 KB |
Output is correct |
26 |
Correct |
9 ms |
9684 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
1492 KB |
Output is correct |
6 |
Correct |
1 ms |
1492 KB |
Output is correct |
7 |
Correct |
1 ms |
1364 KB |
Output is correct |
8 |
Correct |
1 ms |
1492 KB |
Output is correct |
9 |
Correct |
1 ms |
1492 KB |
Output is correct |
10 |
Correct |
1 ms |
1492 KB |
Output is correct |
11 |
Correct |
1 ms |
1492 KB |
Output is correct |
12 |
Correct |
1 ms |
1492 KB |
Output is correct |
13 |
Correct |
1 ms |
1364 KB |
Output is correct |
14 |
Correct |
11 ms |
8956 KB |
Output is correct |
15 |
Correct |
3 ms |
5068 KB |
Output is correct |
16 |
Correct |
5 ms |
5332 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
13 ms |
10008 KB |
Output is correct |
19 |
Correct |
10 ms |
9752 KB |
Output is correct |
20 |
Correct |
9 ms |
9684 KB |
Output is correct |
21 |
Correct |
11 ms |
9940 KB |
Output is correct |
22 |
Correct |
10 ms |
9796 KB |
Output is correct |
23 |
Correct |
9 ms |
9684 KB |
Output is correct |
24 |
Correct |
12 ms |
9984 KB |
Output is correct |
25 |
Correct |
8 ms |
9712 KB |
Output is correct |
26 |
Correct |
9 ms |
9684 KB |
Output is correct |
27 |
Correct |
325 ms |
158512 KB |
Output is correct |
28 |
Correct |
13 ms |
26324 KB |
Output is correct |
29 |
Correct |
19 ms |
13868 KB |
Output is correct |
30 |
Correct |
1 ms |
724 KB |
Output is correct |
31 |
Correct |
239 ms |
131392 KB |
Output is correct |
32 |
Correct |
247 ms |
159004 KB |
Output is correct |
33 |
Correct |
213 ms |
158444 KB |
Output is correct |
34 |
Correct |
267 ms |
152284 KB |
Output is correct |
35 |
Correct |
257 ms |
158904 KB |
Output is correct |
36 |
Correct |
249 ms |
158496 KB |
Output is correct |
37 |
Correct |
317 ms |
159068 KB |
Output is correct |
38 |
Correct |
174 ms |
130920 KB |
Output is correct |
39 |
Correct |
152 ms |
130772 KB |
Output is correct |