#include<bits/stdc++.h>
using namespace std;
int sumi[3005][3005];
int sumo[3005][3005];
int main(){
int h,w;
cin>>h>>w;
string ar[h+5];
queue<pair<int,int> >q;
for(int i=0;i<h;i++){
cin>>ar[i];
for(int j=0;j<w;j++){
if(ar[i][j]=='J'){
q.push({i,j});
}
}
}
for(int i=0;i<h;i++){
for(int j=0;j<w;j++){
if(ar[i][j]=='O'){
sumo[i][j]++;
}else if(ar[i][j]=='I'){
sumi[i][j]++;
}
if(i!=0){
sumi[i][j]+=sumi[i-1][j];
}
if(j!=0){
sumo[i][j]+=sumo[i][j-1];
}
}
}
long long ans=0;
while(!q.empty()){
int x=q.front().first;
int y=q.front().second;
q.pop();
int nx=0,ny=0;
if(x==0){
nx=sumi[h-1][y];
}else{
nx=sumi[h-1][y]-sumi[x-1][y];
}
if(y==0){
ny=sumo[x][w-1];
}else{
ny=sumo[x][w-1]-sumo[x][y-1];
}
ans+=nx*ny;
}
cout<<ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
1236 KB |
Output is correct |
6 |
Correct |
1 ms |
1108 KB |
Output is correct |
7 |
Correct |
1 ms |
1084 KB |
Output is correct |
8 |
Correct |
1 ms |
1236 KB |
Output is correct |
9 |
Correct |
1 ms |
1108 KB |
Output is correct |
10 |
Correct |
1 ms |
1080 KB |
Output is correct |
11 |
Correct |
1 ms |
1236 KB |
Output is correct |
12 |
Correct |
1 ms |
1108 KB |
Output is correct |
13 |
Correct |
1 ms |
1108 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
1236 KB |
Output is correct |
6 |
Correct |
1 ms |
1108 KB |
Output is correct |
7 |
Correct |
1 ms |
1084 KB |
Output is correct |
8 |
Correct |
1 ms |
1236 KB |
Output is correct |
9 |
Correct |
1 ms |
1108 KB |
Output is correct |
10 |
Correct |
1 ms |
1080 KB |
Output is correct |
11 |
Correct |
1 ms |
1236 KB |
Output is correct |
12 |
Correct |
1 ms |
1108 KB |
Output is correct |
13 |
Correct |
1 ms |
1108 KB |
Output is correct |
14 |
Correct |
9 ms |
6716 KB |
Output is correct |
15 |
Correct |
2 ms |
3716 KB |
Output is correct |
16 |
Correct |
5 ms |
4052 KB |
Output is correct |
17 |
Correct |
1 ms |
308 KB |
Output is correct |
18 |
Correct |
12 ms |
7636 KB |
Output is correct |
19 |
Correct |
8 ms |
6756 KB |
Output is correct |
20 |
Correct |
10 ms |
7508 KB |
Output is correct |
21 |
Correct |
12 ms |
7612 KB |
Output is correct |
22 |
Correct |
9 ms |
7356 KB |
Output is correct |
23 |
Correct |
10 ms |
7432 KB |
Output is correct |
24 |
Correct |
12 ms |
7788 KB |
Output is correct |
25 |
Correct |
9 ms |
6776 KB |
Output is correct |
26 |
Correct |
10 ms |
7524 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
1236 KB |
Output is correct |
6 |
Correct |
1 ms |
1108 KB |
Output is correct |
7 |
Correct |
1 ms |
1084 KB |
Output is correct |
8 |
Correct |
1 ms |
1236 KB |
Output is correct |
9 |
Correct |
1 ms |
1108 KB |
Output is correct |
10 |
Correct |
1 ms |
1080 KB |
Output is correct |
11 |
Correct |
1 ms |
1236 KB |
Output is correct |
12 |
Correct |
1 ms |
1108 KB |
Output is correct |
13 |
Correct |
1 ms |
1108 KB |
Output is correct |
14 |
Correct |
9 ms |
6716 KB |
Output is correct |
15 |
Correct |
2 ms |
3716 KB |
Output is correct |
16 |
Correct |
5 ms |
4052 KB |
Output is correct |
17 |
Correct |
1 ms |
308 KB |
Output is correct |
18 |
Correct |
12 ms |
7636 KB |
Output is correct |
19 |
Correct |
8 ms |
6756 KB |
Output is correct |
20 |
Correct |
10 ms |
7508 KB |
Output is correct |
21 |
Correct |
12 ms |
7612 KB |
Output is correct |
22 |
Correct |
9 ms |
7356 KB |
Output is correct |
23 |
Correct |
10 ms |
7432 KB |
Output is correct |
24 |
Correct |
12 ms |
7788 KB |
Output is correct |
25 |
Correct |
9 ms |
6776 KB |
Output is correct |
26 |
Correct |
10 ms |
7524 KB |
Output is correct |
27 |
Correct |
315 ms |
114604 KB |
Output is correct |
28 |
Correct |
10 ms |
19268 KB |
Output is correct |
29 |
Correct |
22 ms |
9824 KB |
Output is correct |
30 |
Correct |
1 ms |
596 KB |
Output is correct |
31 |
Correct |
241 ms |
92532 KB |
Output is correct |
32 |
Correct |
239 ms |
98816 KB |
Output is correct |
33 |
Correct |
255 ms |
116244 KB |
Output is correct |
34 |
Correct |
269 ms |
107136 KB |
Output is correct |
35 |
Correct |
257 ms |
115776 KB |
Output is correct |
36 |
Correct |
264 ms |
116136 KB |
Output is correct |
37 |
Correct |
337 ms |
121516 KB |
Output is correct |
38 |
Correct |
176 ms |
80428 KB |
Output is correct |
39 |
Correct |
185 ms |
92236 KB |
Output is correct |