#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define fi first
#define se second
int h,w,rw[3001][3001],cl[3001][3001],tong;
char a[3001][3001];
main()
{
ios_base::sync_with_stdio(false); cin.tie(NULL);
cin>>h>>w;
for (int i=1;i<=h;++i)
{
for (int j=1;j<=w;++j)
{
cin>>a[i][j];
rw[i][j]=rw[i][j-1];
if (a[i][j]=='O') rw[i][j]++;
cl[i][j]=cl[i-1][j];
if (a[i][j]=='I') cl[i][j]++;
}
}
for (int i=1;i<=h;++i)
{
for (int j=1;j<=w;++j)
{
if (a[i][j]=='J')
{
tong+=(rw[i][w]-rw[i][j])*(cl[h][j]-cl[i][j]);
}
}
}
cout<<tong;
}
Compilation message
joi2019_ho_t1.cpp:8:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
8 | main()
| ^~~~
# |
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 |
3420 KB |
Output is correct |
6 |
Correct |
1 ms |
3420 KB |
Output is correct |
7 |
Correct |
1 ms |
3420 KB |
Output is correct |
8 |
Correct |
1 ms |
3416 KB |
Output is correct |
9 |
Correct |
1 ms |
3420 KB |
Output is correct |
10 |
Correct |
1 ms |
3420 KB |
Output is correct |
11 |
Correct |
1 ms |
3672 KB |
Output is correct |
12 |
Correct |
1 ms |
3496 KB |
Output is correct |
13 |
Correct |
1 ms |
3420 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 |
3420 KB |
Output is correct |
6 |
Correct |
1 ms |
3420 KB |
Output is correct |
7 |
Correct |
1 ms |
3420 KB |
Output is correct |
8 |
Correct |
1 ms |
3416 KB |
Output is correct |
9 |
Correct |
1 ms |
3420 KB |
Output is correct |
10 |
Correct |
1 ms |
3420 KB |
Output is correct |
11 |
Correct |
1 ms |
3672 KB |
Output is correct |
12 |
Correct |
1 ms |
3496 KB |
Output is correct |
13 |
Correct |
1 ms |
3420 KB |
Output is correct |
14 |
Correct |
6 ms |
12380 KB |
Output is correct |
15 |
Correct |
2 ms |
9048 KB |
Output is correct |
16 |
Correct |
3 ms |
7000 KB |
Output is correct |
17 |
Correct |
0 ms |
600 KB |
Output is correct |
18 |
Correct |
8 ms |
12632 KB |
Output is correct |
19 |
Correct |
4 ms |
12552 KB |
Output is correct |
20 |
Incorrect |
4 ms |
12380 KB |
Output isn't correct |
21 |
Halted |
0 ms |
0 KB |
- |
# |
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 |
3420 KB |
Output is correct |
6 |
Correct |
1 ms |
3420 KB |
Output is correct |
7 |
Correct |
1 ms |
3420 KB |
Output is correct |
8 |
Correct |
1 ms |
3416 KB |
Output is correct |
9 |
Correct |
1 ms |
3420 KB |
Output is correct |
10 |
Correct |
1 ms |
3420 KB |
Output is correct |
11 |
Correct |
1 ms |
3672 KB |
Output is correct |
12 |
Correct |
1 ms |
3496 KB |
Output is correct |
13 |
Correct |
1 ms |
3420 KB |
Output is correct |
14 |
Correct |
6 ms |
12380 KB |
Output is correct |
15 |
Correct |
2 ms |
9048 KB |
Output is correct |
16 |
Correct |
3 ms |
7000 KB |
Output is correct |
17 |
Correct |
0 ms |
600 KB |
Output is correct |
18 |
Correct |
8 ms |
12632 KB |
Output is correct |
19 |
Correct |
4 ms |
12552 KB |
Output is correct |
20 |
Incorrect |
4 ms |
12380 KB |
Output isn't correct |
21 |
Halted |
0 ms |
0 KB |
- |