#include<bits/stdc++.h>
using namespace std;
#define INIT ios_base :: sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define mp make_pair
#define pb push_back
#define ft first
#define sc second
#define ll long long
#define pii pair<int, int>
#define count_bits __builtin_popcount
char a[3010][3010];
short int n, m;
short int ing[3010], orb[3010];
int32_t main(){
INIT
cin>>n>>m;
for(int i=1; i<=n; i++){
for(int j=1; j<=m; j++){
cin>>a[i][j];
}
}
ll res=0;
for(int i=n; i>=1; i--){
for(int j=m; j>=1; j--){
orb[i]=orb[i]+((a[i][j]=='O')?(1):(0));
ing[j]=ing[j]+((a[i][j]=='I')?(1):(0));
if(a[i][j]=='J'){
res+=((ll)ing[j])*((ll)orb[i]);
}
}
}
cout<<res;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
620 KB |
Output is correct |
6 |
Correct |
1 ms |
620 KB |
Output is correct |
7 |
Correct |
1 ms |
620 KB |
Output is correct |
8 |
Correct |
1 ms |
620 KB |
Output is correct |
9 |
Correct |
1 ms |
620 KB |
Output is correct |
10 |
Correct |
1 ms |
620 KB |
Output is correct |
11 |
Correct |
1 ms |
620 KB |
Output is correct |
12 |
Correct |
1 ms |
620 KB |
Output is correct |
13 |
Correct |
1 ms |
620 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
620 KB |
Output is correct |
6 |
Correct |
1 ms |
620 KB |
Output is correct |
7 |
Correct |
1 ms |
620 KB |
Output is correct |
8 |
Correct |
1 ms |
620 KB |
Output is correct |
9 |
Correct |
1 ms |
620 KB |
Output is correct |
10 |
Correct |
1 ms |
620 KB |
Output is correct |
11 |
Correct |
1 ms |
620 KB |
Output is correct |
12 |
Correct |
1 ms |
620 KB |
Output is correct |
13 |
Correct |
1 ms |
620 KB |
Output is correct |
14 |
Correct |
6 ms |
1772 KB |
Output is correct |
15 |
Correct |
1 ms |
1644 KB |
Output is correct |
16 |
Correct |
3 ms |
1132 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
7 ms |
1772 KB |
Output is correct |
19 |
Correct |
5 ms |
1772 KB |
Output is correct |
20 |
Correct |
5 ms |
1772 KB |
Output is correct |
21 |
Correct |
7 ms |
1772 KB |
Output is correct |
22 |
Correct |
5 ms |
1772 KB |
Output is correct |
23 |
Correct |
7 ms |
1772 KB |
Output is correct |
24 |
Correct |
7 ms |
1772 KB |
Output is correct |
25 |
Correct |
5 ms |
1772 KB |
Output is correct |
26 |
Correct |
5 ms |
1772 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
620 KB |
Output is correct |
6 |
Correct |
1 ms |
620 KB |
Output is correct |
7 |
Correct |
1 ms |
620 KB |
Output is correct |
8 |
Correct |
1 ms |
620 KB |
Output is correct |
9 |
Correct |
1 ms |
620 KB |
Output is correct |
10 |
Correct |
1 ms |
620 KB |
Output is correct |
11 |
Correct |
1 ms |
620 KB |
Output is correct |
12 |
Correct |
1 ms |
620 KB |
Output is correct |
13 |
Correct |
1 ms |
620 KB |
Output is correct |
14 |
Correct |
6 ms |
1772 KB |
Output is correct |
15 |
Correct |
1 ms |
1644 KB |
Output is correct |
16 |
Correct |
3 ms |
1132 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
7 ms |
1772 KB |
Output is correct |
19 |
Correct |
5 ms |
1772 KB |
Output is correct |
20 |
Correct |
5 ms |
1772 KB |
Output is correct |
21 |
Correct |
7 ms |
1772 KB |
Output is correct |
22 |
Correct |
5 ms |
1772 KB |
Output is correct |
23 |
Correct |
7 ms |
1772 KB |
Output is correct |
24 |
Correct |
7 ms |
1772 KB |
Output is correct |
25 |
Correct |
5 ms |
1772 KB |
Output is correct |
26 |
Correct |
5 ms |
1772 KB |
Output is correct |
27 |
Correct |
193 ms |
9324 KB |
Output is correct |
28 |
Correct |
5 ms |
7148 KB |
Output is correct |
29 |
Correct |
11 ms |
1132 KB |
Output is correct |
30 |
Correct |
1 ms |
364 KB |
Output is correct |
31 |
Correct |
142 ms |
7788 KB |
Output is correct |
32 |
Correct |
153 ms |
9196 KB |
Output is correct |
33 |
Correct |
152 ms |
9216 KB |
Output is correct |
34 |
Correct |
166 ms |
9068 KB |
Output is correct |
35 |
Correct |
153 ms |
9196 KB |
Output is correct |
36 |
Correct |
151 ms |
9196 KB |
Output is correct |
37 |
Correct |
197 ms |
9196 KB |
Output is correct |
38 |
Correct |
115 ms |
7660 KB |
Output is correct |
39 |
Correct |
105 ms |
7660 KB |
Output is correct |