#include <bits/stdc++.h>
using namespace std;
#define int long long
int dp[1000005], P[3005], S[3005], L[3005][3005];
char g[3005][3005];
priority_queue<int>pq;
pair<int, int> A[1000005];
main(){
ios::sync_with_stdio(0);cin.tie(0);
int h,w,ans = 0;
cin >> h >> w;
for(int i=1;i<=h;i++){
for(int j=1;j<=w;j++)cin >> g[i][j];
}
for(int i=1;i<=h;i++){
for(int j=w;j>=1;j--)L[i][j] = L[i][j+1] + (g[i][j] == 'O');
}
for(int i=1;i<=w;i++){
for(int j=1;j<=h;j++)P[j] = P[j-1] + (g[j][i] == 'J');
for(int j=h;j>=1;j--)S[j] = S[j+1] + (g[j][i] == 'I');
for(int j=1;j<=h;j++)ans += (g[j][i] == 'J') * S[j+1] * L[j][i+1];
}
cout << ans;
}
Compilation message
joi2019_ho_t1.cpp:9:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
9 | main(){
| ^~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
0 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
1112 KB |
Output is correct |
6 |
Correct |
1 ms |
1100 KB |
Output is correct |
7 |
Correct |
2 ms |
972 KB |
Output is correct |
8 |
Correct |
1 ms |
1100 KB |
Output is correct |
9 |
Correct |
1 ms |
1100 KB |
Output is correct |
10 |
Correct |
1 ms |
972 KB |
Output is correct |
11 |
Correct |
1 ms |
1108 KB |
Output is correct |
12 |
Correct |
1 ms |
1100 KB |
Output is correct |
13 |
Correct |
1 ms |
972 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
0 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
1112 KB |
Output is correct |
6 |
Correct |
1 ms |
1100 KB |
Output is correct |
7 |
Correct |
2 ms |
972 KB |
Output is correct |
8 |
Correct |
1 ms |
1100 KB |
Output is correct |
9 |
Correct |
1 ms |
1100 KB |
Output is correct |
10 |
Correct |
1 ms |
972 KB |
Output is correct |
11 |
Correct |
1 ms |
1108 KB |
Output is correct |
12 |
Correct |
1 ms |
1100 KB |
Output is correct |
13 |
Correct |
1 ms |
972 KB |
Output is correct |
14 |
Correct |
7 ms |
5464 KB |
Output is correct |
15 |
Correct |
2 ms |
3276 KB |
Output is correct |
16 |
Correct |
4 ms |
3248 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
11 ms |
5992 KB |
Output is correct |
19 |
Correct |
9 ms |
5836 KB |
Output is correct |
20 |
Correct |
10 ms |
5852 KB |
Output is correct |
21 |
Correct |
9 ms |
5964 KB |
Output is correct |
22 |
Correct |
9 ms |
5848 KB |
Output is correct |
23 |
Correct |
10 ms |
5828 KB |
Output is correct |
24 |
Correct |
9 ms |
5924 KB |
Output is correct |
25 |
Correct |
9 ms |
5960 KB |
Output is correct |
26 |
Correct |
8 ms |
5836 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
0 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
1112 KB |
Output is correct |
6 |
Correct |
1 ms |
1100 KB |
Output is correct |
7 |
Correct |
2 ms |
972 KB |
Output is correct |
8 |
Correct |
1 ms |
1100 KB |
Output is correct |
9 |
Correct |
1 ms |
1100 KB |
Output is correct |
10 |
Correct |
1 ms |
972 KB |
Output is correct |
11 |
Correct |
1 ms |
1108 KB |
Output is correct |
12 |
Correct |
1 ms |
1100 KB |
Output is correct |
13 |
Correct |
1 ms |
972 KB |
Output is correct |
14 |
Correct |
7 ms |
5464 KB |
Output is correct |
15 |
Correct |
2 ms |
3276 KB |
Output is correct |
16 |
Correct |
4 ms |
3248 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
11 ms |
5992 KB |
Output is correct |
19 |
Correct |
9 ms |
5836 KB |
Output is correct |
20 |
Correct |
10 ms |
5852 KB |
Output is correct |
21 |
Correct |
9 ms |
5964 KB |
Output is correct |
22 |
Correct |
9 ms |
5848 KB |
Output is correct |
23 |
Correct |
10 ms |
5828 KB |
Output is correct |
24 |
Correct |
9 ms |
5924 KB |
Output is correct |
25 |
Correct |
9 ms |
5960 KB |
Output is correct |
26 |
Correct |
8 ms |
5836 KB |
Output is correct |
27 |
Correct |
381 ms |
88144 KB |
Output is correct |
28 |
Correct |
9 ms |
16716 KB |
Output is correct |
29 |
Correct |
17 ms |
7768 KB |
Output is correct |
30 |
Correct |
1 ms |
588 KB |
Output is correct |
31 |
Correct |
264 ms |
72536 KB |
Output is correct |
32 |
Correct |
389 ms |
88388 KB |
Output is correct |
33 |
Correct |
389 ms |
88256 KB |
Output is correct |
34 |
Correct |
321 ms |
84264 KB |
Output is correct |
35 |
Correct |
403 ms |
88380 KB |
Output is correct |
36 |
Correct |
398 ms |
88376 KB |
Output is correct |
37 |
Correct |
426 ms |
88548 KB |
Output is correct |
38 |
Correct |
270 ms |
72360 KB |
Output is correct |
39 |
Correct |
271 ms |
72304 KB |
Output is correct |