#include<iostream>
#include<vector>
#include<queue>
#include<stack>
#include<algorithm>
#include<limits.h>
#include<math.h>
#include<map>
#include<set>
#include<unordered_map>
#include<unordered_set>
#include<iomanip>
#include<cstring>
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
using namespace std;
const int MOD=1e9+7;
//typedef pair<ll,ll>Point;
//typedef pair<ll,ll>Line;
//#define x first
//#define y second
int w,h;
string arr[3000];
int numo[3000][3000];
int numi[3000][3000];
void solve(){
cin>>w>>h;
for(int x=0;x<w;x++){
cin>>arr[x];
}
for(int x=0;x<w;x++){
for(int y=h-1;y>=0;y--){
if(y!=h-1)
numo[x][y]=numo[x][y+1];
if(arr[x][y]=='O')
numo[x][y]++;
}
}
for(int y=0;y<h;y++){
for(int x=w-1;x>=0;x--){
if(x!=w-1)
numi[x][y]=numi[x+1][y];
if(arr[x][y]=='I')
numi[x][y]++;
}
}
ll res=0;
for(int x=0;x<w;x++){
for(int y=0;y<h;y++){
if(arr[x][y]=='J'){
res+=(ll)numi[x][y]*numo[x][y];
//cout<<res<<"\n";
}
}
}
cout<<res<<"\n";
}
int main(){
ios::sync_with_stdio(false);cout.tie(NULL);cin.tie(NULL);
//freopen("bank.in","r",stdin);freopen("bank.out","w",stdout);
int t=1;//cin>>t;
while(t--)solve();
return 0;
}
/*
4 4
JJOO
JJOO
IIJO
IIIJ
3 4
JOIJ
JIOO
IIII
*/
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
2392 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
2908 KB |
Output is correct |
6 |
Correct |
1 ms |
1376 KB |
Output is correct |
7 |
Correct |
1 ms |
4700 KB |
Output is correct |
8 |
Correct |
1 ms |
1368 KB |
Output is correct |
9 |
Correct |
1 ms |
4700 KB |
Output is correct |
10 |
Correct |
1 ms |
4700 KB |
Output is correct |
11 |
Correct |
1 ms |
1340 KB |
Output is correct |
12 |
Correct |
1 ms |
2904 KB |
Output is correct |
13 |
Correct |
1 ms |
4700 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
2392 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
2908 KB |
Output is correct |
6 |
Correct |
1 ms |
1376 KB |
Output is correct |
7 |
Correct |
1 ms |
4700 KB |
Output is correct |
8 |
Correct |
1 ms |
1368 KB |
Output is correct |
9 |
Correct |
1 ms |
4700 KB |
Output is correct |
10 |
Correct |
1 ms |
4700 KB |
Output is correct |
11 |
Correct |
1 ms |
1340 KB |
Output is correct |
12 |
Correct |
1 ms |
2904 KB |
Output is correct |
13 |
Correct |
1 ms |
4700 KB |
Output is correct |
14 |
Correct |
5 ms |
9560 KB |
Output is correct |
15 |
Correct |
2 ms |
12892 KB |
Output is correct |
16 |
Correct |
3 ms |
4700 KB |
Output is correct |
17 |
Correct |
1 ms |
2652 KB |
Output is correct |
18 |
Correct |
6 ms |
8796 KB |
Output is correct |
19 |
Correct |
4 ms |
9820 KB |
Output is correct |
20 |
Correct |
4 ms |
13404 KB |
Output is correct |
21 |
Correct |
5 ms |
10076 KB |
Output is correct |
22 |
Correct |
4 ms |
11324 KB |
Output is correct |
23 |
Correct |
4 ms |
13392 KB |
Output is correct |
24 |
Correct |
5 ms |
9816 KB |
Output is correct |
25 |
Correct |
4 ms |
12096 KB |
Output is correct |
26 |
Correct |
4 ms |
13348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
2392 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
2908 KB |
Output is correct |
6 |
Correct |
1 ms |
1376 KB |
Output is correct |
7 |
Correct |
1 ms |
4700 KB |
Output is correct |
8 |
Correct |
1 ms |
1368 KB |
Output is correct |
9 |
Correct |
1 ms |
4700 KB |
Output is correct |
10 |
Correct |
1 ms |
4700 KB |
Output is correct |
11 |
Correct |
1 ms |
1340 KB |
Output is correct |
12 |
Correct |
1 ms |
2904 KB |
Output is correct |
13 |
Correct |
1 ms |
4700 KB |
Output is correct |
14 |
Correct |
5 ms |
9560 KB |
Output is correct |
15 |
Correct |
2 ms |
12892 KB |
Output is correct |
16 |
Correct |
3 ms |
4700 KB |
Output is correct |
17 |
Correct |
1 ms |
2652 KB |
Output is correct |
18 |
Correct |
6 ms |
8796 KB |
Output is correct |
19 |
Correct |
4 ms |
9820 KB |
Output is correct |
20 |
Correct |
4 ms |
13404 KB |
Output is correct |
21 |
Correct |
5 ms |
10076 KB |
Output is correct |
22 |
Correct |
4 ms |
11324 KB |
Output is correct |
23 |
Correct |
4 ms |
13392 KB |
Output is correct |
24 |
Correct |
5 ms |
9816 KB |
Output is correct |
25 |
Correct |
4 ms |
12096 KB |
Output is correct |
26 |
Correct |
4 ms |
13348 KB |
Output is correct |
27 |
Correct |
171 ms |
88404 KB |
Output is correct |
28 |
Correct |
7 ms |
54876 KB |
Output is correct |
29 |
Correct |
7 ms |
8764 KB |
Output is correct |
30 |
Correct |
1 ms |
604 KB |
Output is correct |
31 |
Correct |
111 ms |
72108 KB |
Output is correct |
32 |
Correct |
163 ms |
89712 KB |
Output is correct |
33 |
Correct |
137 ms |
89172 KB |
Output is correct |
34 |
Correct |
156 ms |
83436 KB |
Output is correct |
35 |
Correct |
136 ms |
89424 KB |
Output is correct |
36 |
Correct |
138 ms |
89224 KB |
Output is correct |
37 |
Correct |
181 ms |
89704 KB |
Output is correct |
38 |
Correct |
90 ms |
73556 KB |
Output is correct |
39 |
Correct |
80 ms |
75088 KB |
Output is correct |