#include <bits/stdc++.h>
#define all(v) ((v).begin(),(v).end())
#define ll long long
using namespace std;
const ll mod = 1e9 + 7;
const ll mxN = 2e6 + 1;
char a[3011][3011];
ll ing[3011][3011],orb[3011][3011];
signed main()
{
ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
ll n,m;
cin >>n>>m;
for(ll i = 1;i <= n;i++){
for(ll j = 1; j <= m;j++){
cin >>a[i][j];
}
}
for(ll j = 1;j <= m;j++){
for(ll i = n;i;i--){
ing[i][j] = ing[i + 1][j] + (a[i][j] == 'I');
}
}
for(ll i = 1;i <= n;i++){
for(ll j = m;j;j--){
orb[i][j] = orb[i][j + 1] + (a[i][j] == 'O');
}
}
ll ans = 0;
for(ll i = 1;i<= n;i++){
for(ll j = 1;j <= m;j++){
if(a[i][j] == 'J'){
ans += orb[i][j] * ing[i][j];
}
}
}
cout<<ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
324 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
2 ms |
1492 KB |
Output is correct |
6 |
Correct |
2 ms |
1472 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 |
1364 KB |
Output is correct |
11 |
Correct |
2 ms |
1492 KB |
Output is correct |
12 |
Correct |
2 ms |
1492 KB |
Output is correct |
13 |
Correct |
1 ms |
1364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
324 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
2 ms |
1492 KB |
Output is correct |
6 |
Correct |
2 ms |
1472 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 |
1364 KB |
Output is correct |
11 |
Correct |
2 ms |
1492 KB |
Output is correct |
12 |
Correct |
2 ms |
1492 KB |
Output is correct |
13 |
Correct |
1 ms |
1364 KB |
Output is correct |
14 |
Correct |
9 ms |
9024 KB |
Output is correct |
15 |
Correct |
3 ms |
4948 KB |
Output is correct |
16 |
Correct |
6 ms |
5316 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
11 ms |
9896 KB |
Output is correct |
19 |
Correct |
11 ms |
9820 KB |
Output is correct |
20 |
Correct |
10 ms |
9684 KB |
Output is correct |
21 |
Correct |
11 ms |
9944 KB |
Output is correct |
22 |
Correct |
10 ms |
9812 KB |
Output is correct |
23 |
Correct |
10 ms |
9684 KB |
Output is correct |
24 |
Correct |
11 ms |
9936 KB |
Output is correct |
25 |
Correct |
10 ms |
9812 KB |
Output is correct |
26 |
Correct |
9 ms |
9684 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
324 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
2 ms |
1492 KB |
Output is correct |
6 |
Correct |
2 ms |
1472 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 |
1364 KB |
Output is correct |
11 |
Correct |
2 ms |
1492 KB |
Output is correct |
12 |
Correct |
2 ms |
1492 KB |
Output is correct |
13 |
Correct |
1 ms |
1364 KB |
Output is correct |
14 |
Correct |
9 ms |
9024 KB |
Output is correct |
15 |
Correct |
3 ms |
4948 KB |
Output is correct |
16 |
Correct |
6 ms |
5316 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
11 ms |
9896 KB |
Output is correct |
19 |
Correct |
11 ms |
9820 KB |
Output is correct |
20 |
Correct |
10 ms |
9684 KB |
Output is correct |
21 |
Correct |
11 ms |
9944 KB |
Output is correct |
22 |
Correct |
10 ms |
9812 KB |
Output is correct |
23 |
Correct |
10 ms |
9684 KB |
Output is correct |
24 |
Correct |
11 ms |
9936 KB |
Output is correct |
25 |
Correct |
10 ms |
9812 KB |
Output is correct |
26 |
Correct |
9 ms |
9684 KB |
Output is correct |
27 |
Correct |
347 ms |
158872 KB |
Output is correct |
28 |
Correct |
13 ms |
26452 KB |
Output is correct |
29 |
Correct |
19 ms |
13928 KB |
Output is correct |
30 |
Correct |
1 ms |
724 KB |
Output is correct |
31 |
Correct |
274 ms |
131612 KB |
Output is correct |
32 |
Correct |
348 ms |
159272 KB |
Output is correct |
33 |
Correct |
350 ms |
158884 KB |
Output is correct |
34 |
Correct |
344 ms |
152648 KB |
Output is correct |
35 |
Correct |
363 ms |
159264 KB |
Output is correct |
36 |
Correct |
353 ms |
158772 KB |
Output is correct |
37 |
Correct |
365 ms |
159416 KB |
Output is correct |
38 |
Correct |
239 ms |
130764 KB |
Output is correct |
39 |
Correct |
236 ms |
131100 KB |
Output is correct |