#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pll;
#define fastio ios::sync_with_stdio(false), cin.tie(0)
// #pragma GCC optimize("Ofast")
#define pb push_back
#define eb emplace_back
#define f first
#define s second
#define lowbit(x) x&-x
const int maxn = 3000 + 5;
const int INF = 1e9;
const double eps = 1e-7;
string s[maxn];
int r[maxn][maxn], d[maxn][maxn];
int main(void){
fastio;
int h, w;
cin>>h>>w;
for(int i = 0; i < h; i++) cin>>s[i];
for(int i = 0; i < h; i++){
int cnt = 0;
for(int j = w - 1; j >= 0; j--){
if(s[i][j] == 'O') cnt++;
if(s[i][j] == 'J') r[i][j] = cnt;
}
}
for(int j = 0; j < w; j++){
int cnt = 0;
for(int i = h - 1; i >= 0; i--){
if(s[i][j] == 'I') cnt++;
if(s[i][j] == 'J') d[i][j] = cnt;
}
}
ll ans = 0;
for(int i = 0; i < h; i++){
for(int j = 0; j < w; j++){
if(s[i][j] == 'J') ans += r[i][j] * d[i][j];
}
}
cout<<ans<<"\n";
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 7 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 8 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4660 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4696 KB |
Output is correct |
| 13 |
Correct |
1 ms |
4700 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 7 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 8 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4660 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4696 KB |
Output is correct |
| 13 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 14 |
Correct |
5 ms |
13144 KB |
Output is correct |
| 15 |
Correct |
2 ms |
12888 KB |
Output is correct |
| 16 |
Correct |
2 ms |
8796 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 18 |
Correct |
6 ms |
13148 KB |
Output is correct |
| 19 |
Correct |
2 ms |
13148 KB |
Output is correct |
| 20 |
Correct |
2 ms |
13148 KB |
Output is correct |
| 21 |
Correct |
6 ms |
13204 KB |
Output is correct |
| 22 |
Correct |
3 ms |
13148 KB |
Output is correct |
| 23 |
Correct |
2 ms |
13148 KB |
Output is correct |
| 24 |
Correct |
6 ms |
13148 KB |
Output is correct |
| 25 |
Correct |
3 ms |
13148 KB |
Output is correct |
| 26 |
Correct |
2 ms |
13148 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
2392 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 6 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 7 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 8 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4660 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 12 |
Correct |
1 ms |
4696 KB |
Output is correct |
| 13 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 14 |
Correct |
5 ms |
13144 KB |
Output is correct |
| 15 |
Correct |
2 ms |
12888 KB |
Output is correct |
| 16 |
Correct |
2 ms |
8796 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 18 |
Correct |
6 ms |
13148 KB |
Output is correct |
| 19 |
Correct |
2 ms |
13148 KB |
Output is correct |
| 20 |
Correct |
2 ms |
13148 KB |
Output is correct |
| 21 |
Correct |
6 ms |
13204 KB |
Output is correct |
| 22 |
Correct |
3 ms |
13148 KB |
Output is correct |
| 23 |
Correct |
2 ms |
13148 KB |
Output is correct |
| 24 |
Correct |
6 ms |
13148 KB |
Output is correct |
| 25 |
Correct |
3 ms |
13148 KB |
Output is correct |
| 26 |
Correct |
2 ms |
13148 KB |
Output is correct |
| 27 |
Correct |
169 ms |
85588 KB |
Output is correct |
| 28 |
Correct |
6 ms |
53860 KB |
Output is correct |
| 29 |
Correct |
4 ms |
10084 KB |
Output is correct |
| 30 |
Correct |
1 ms |
2656 KB |
Output is correct |
| 31 |
Correct |
124 ms |
74796 KB |
Output is correct |
| 32 |
Correct |
72 ms |
89576 KB |
Output is correct |
| 33 |
Correct |
58 ms |
88924 KB |
Output is correct |
| 34 |
Correct |
147 ms |
85196 KB |
Output is correct |
| 35 |
Correct |
70 ms |
89416 KB |
Output is correct |
| 36 |
Correct |
56 ms |
89012 KB |
Output is correct |
| 37 |
Correct |
181 ms |
89684 KB |
Output is correct |
| 38 |
Correct |
41 ms |
74776 KB |
Output is correct |
| 39 |
Correct |
38 ms |
74880 KB |
Output is correct |
