#include<bits/stdc++.h>
using namespace std;
#define int long long
main(){
int n,m;
cin>>n>>m;
char arr[n+3][m+3];
int O[n+3][m+3];
int I[n+3][m+3];
memset(O,0,sizeof(O));
memset(I,0,sizeof(I));
for(int i=0;i<n;i++){
for(int j=0;j<m;j++){
cin>>arr[i][j];
}
}
for(int i=0;i<n;i++){
for(int j=m-1;j>=0;j--){
if(arr[i][j]!='O'){
O[i][j] = O[i][j+1];
continue;
}
if(j==m-1) O[i][j] = 1;
else O[i][j] = O[i][j+1]+1;
}
}
for(int i=n-1;i>=0;i--){
for(int j=0;j<m;j++){
if(arr[i][j]!='I'){
I[i][j] = I[i+1][j];
continue;
}
if(i==n-1) I[i][j] = 1;
else I[i][j] = I[i+1][j]+1;
}
}
int sum = 0;
for(int i=0;i<n;i++){
for(int j=0;j<m;j++){
if(arr[i][j] == 'J'){
sum+=O[i][j]*I[i][j];
}
}
}
cout<<sum;
}
Compilation message
joi2019_ho_t1.cpp:4:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
4 | main(){
| ^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
308 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
468 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
468 KB |
Output is correct |
| 8 |
Correct |
1 ms |
468 KB |
Output is correct |
| 9 |
Correct |
1 ms |
468 KB |
Output is correct |
| 10 |
Correct |
1 ms |
468 KB |
Output is correct |
| 11 |
Correct |
1 ms |
468 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
468 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
308 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
468 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
468 KB |
Output is correct |
| 8 |
Correct |
1 ms |
468 KB |
Output is correct |
| 9 |
Correct |
1 ms |
468 KB |
Output is correct |
| 10 |
Correct |
1 ms |
468 KB |
Output is correct |
| 11 |
Correct |
1 ms |
468 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
468 KB |
Output is correct |
| 14 |
Correct |
14 ms |
3668 KB |
Output is correct |
| 15 |
Correct |
1 ms |
340 KB |
Output is correct |
| 16 |
Correct |
9 ms |
2612 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
18 ms |
4692 KB |
Output is correct |
| 19 |
Correct |
16 ms |
4564 KB |
Output is correct |
| 20 |
Correct |
16 ms |
4564 KB |
Output is correct |
| 21 |
Correct |
18 ms |
4752 KB |
Output is correct |
| 22 |
Correct |
16 ms |
4572 KB |
Output is correct |
| 23 |
Correct |
16 ms |
4564 KB |
Output is correct |
| 24 |
Correct |
19 ms |
4692 KB |
Output is correct |
| 25 |
Correct |
16 ms |
4440 KB |
Output is correct |
| 26 |
Correct |
15 ms |
4564 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
308 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
468 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
468 KB |
Output is correct |
| 8 |
Correct |
1 ms |
468 KB |
Output is correct |
| 9 |
Correct |
1 ms |
468 KB |
Output is correct |
| 10 |
Correct |
1 ms |
468 KB |
Output is correct |
| 11 |
Correct |
1 ms |
468 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
468 KB |
Output is correct |
| 14 |
Correct |
14 ms |
3668 KB |
Output is correct |
| 15 |
Correct |
1 ms |
340 KB |
Output is correct |
| 16 |
Correct |
9 ms |
2612 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
18 ms |
4692 KB |
Output is correct |
| 19 |
Correct |
16 ms |
4564 KB |
Output is correct |
| 20 |
Correct |
16 ms |
4564 KB |
Output is correct |
| 21 |
Correct |
18 ms |
4752 KB |
Output is correct |
| 22 |
Correct |
16 ms |
4572 KB |
Output is correct |
| 23 |
Correct |
16 ms |
4564 KB |
Output is correct |
| 24 |
Correct |
19 ms |
4692 KB |
Output is correct |
| 25 |
Correct |
16 ms |
4440 KB |
Output is correct |
| 26 |
Correct |
15 ms |
4564 KB |
Output is correct |
| 27 |
Correct |
596 ms |
150244 KB |
Output is correct |
| 28 |
Correct |
2 ms |
828 KB |
Output is correct |
| 29 |
Correct |
44 ms |
11812 KB |
Output is correct |
| 30 |
Correct |
2 ms |
812 KB |
Output is correct |
| 31 |
Correct |
436 ms |
110476 KB |
Output is correct |
| 32 |
Correct |
574 ms |
157972 KB |
Output is correct |
| 33 |
Correct |
570 ms |
158452 KB |
Output is correct |
| 34 |
Correct |
503 ms |
128204 KB |
Output is correct |
| 35 |
Correct |
571 ms |
158012 KB |
Output is correct |
| 36 |
Correct |
566 ms |
158516 KB |
Output is correct |
| 37 |
Correct |
624 ms |
159172 KB |
Output is correct |
| 38 |
Correct |
406 ms |
109628 KB |
Output is correct |
| 39 |
Correct |
395 ms |
110068 KB |
Output is correct |
