#include<bits/stdc++.h>
using namespace std;
using ll = long long;
int main(){
ios::sync_with_stdio(0);cin.tie(0);
ll h,w;
cin >> h >> w;
vector<string> a(h);
for(auto &o : a) cin >> o;
vector<vector<ll>> b(h,vector<ll>(w,0)),c(h,vector<ll>(w,0));
ll ans = 0;
for(ll j = w-1;j>=0;j--){
for(ll i = h-1;i>=0;i--){
if (a[i][j]=='O') b[i][j]++;
if (j<w-1) b[i][j]+=b[i][j+1];
if (a[i][j]=='I') c[i][j]++;
if (i<h-1) c[i][j]+=c[i+1][j];
if (a[i][j]=='J') ans += b[i][j]*c[i][j];
}
}
cout << ans << "\n";
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
460 KB |
Output is correct |
| 6 |
Correct |
1 ms |
604 KB |
Output is correct |
| 7 |
Correct |
0 ms |
604 KB |
Output is correct |
| 8 |
Correct |
1 ms |
604 KB |
Output is correct |
| 9 |
Correct |
0 ms |
604 KB |
Output is correct |
| 10 |
Correct |
1 ms |
604 KB |
Output is correct |
| 11 |
Correct |
1 ms |
756 KB |
Output is correct |
| 12 |
Correct |
0 ms |
604 KB |
Output is correct |
| 13 |
Correct |
1 ms |
604 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
460 KB |
Output is correct |
| 6 |
Correct |
1 ms |
604 KB |
Output is correct |
| 7 |
Correct |
0 ms |
604 KB |
Output is correct |
| 8 |
Correct |
1 ms |
604 KB |
Output is correct |
| 9 |
Correct |
0 ms |
604 KB |
Output is correct |
| 10 |
Correct |
1 ms |
604 KB |
Output is correct |
| 11 |
Correct |
1 ms |
756 KB |
Output is correct |
| 12 |
Correct |
0 ms |
604 KB |
Output is correct |
| 13 |
Correct |
1 ms |
604 KB |
Output is correct |
| 14 |
Correct |
4 ms |
3776 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
3 ms |
2640 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
5 ms |
4700 KB |
Output is correct |
| 19 |
Correct |
3 ms |
4700 KB |
Output is correct |
| 20 |
Correct |
3 ms |
4700 KB |
Output is correct |
| 21 |
Correct |
5 ms |
4700 KB |
Output is correct |
| 22 |
Correct |
3 ms |
4604 KB |
Output is correct |
| 23 |
Correct |
4 ms |
4700 KB |
Output is correct |
| 24 |
Correct |
5 ms |
4700 KB |
Output is correct |
| 25 |
Correct |
3 ms |
4664 KB |
Output is correct |
| 26 |
Correct |
4 ms |
4700 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
460 KB |
Output is correct |
| 6 |
Correct |
1 ms |
604 KB |
Output is correct |
| 7 |
Correct |
0 ms |
604 KB |
Output is correct |
| 8 |
Correct |
1 ms |
604 KB |
Output is correct |
| 9 |
Correct |
0 ms |
604 KB |
Output is correct |
| 10 |
Correct |
1 ms |
604 KB |
Output is correct |
| 11 |
Correct |
1 ms |
756 KB |
Output is correct |
| 12 |
Correct |
0 ms |
604 KB |
Output is correct |
| 13 |
Correct |
1 ms |
604 KB |
Output is correct |
| 14 |
Correct |
4 ms |
3776 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
3 ms |
2640 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
5 ms |
4700 KB |
Output is correct |
| 19 |
Correct |
3 ms |
4700 KB |
Output is correct |
| 20 |
Correct |
3 ms |
4700 KB |
Output is correct |
| 21 |
Correct |
5 ms |
4700 KB |
Output is correct |
| 22 |
Correct |
3 ms |
4604 KB |
Output is correct |
| 23 |
Correct |
4 ms |
4700 KB |
Output is correct |
| 24 |
Correct |
5 ms |
4700 KB |
Output is correct |
| 25 |
Correct |
3 ms |
4664 KB |
Output is correct |
| 26 |
Correct |
4 ms |
4700 KB |
Output is correct |
| 27 |
Correct |
299 ms |
151216 KB |
Output is correct |
| 28 |
Correct |
2 ms |
860 KB |
Output is correct |
| 29 |
Correct |
10 ms |
11864 KB |
Output is correct |
| 30 |
Correct |
1 ms |
860 KB |
Output is correct |
| 31 |
Correct |
221 ms |
111184 KB |
Output is correct |
| 32 |
Correct |
315 ms |
159068 KB |
Output is correct |
| 33 |
Correct |
299 ms |
159576 KB |
Output is correct |
| 34 |
Correct |
239 ms |
128848 KB |
Output is correct |
| 35 |
Correct |
326 ms |
159412 KB |
Output is correct |
| 36 |
Correct |
319 ms |
159412 KB |
Output is correct |
| 37 |
Correct |
310 ms |
160648 KB |
Output is correct |
| 38 |
Correct |
192 ms |
110416 KB |
Output is correct |
| 39 |
Correct |
217 ms |
110892 KB |
Output is correct |
