#include <bits/stdc++.h>
#define int long long
#define P(x) do {if(debug) cout << x << endl;} while(false)
#define H(x) P(#x << ": " << x)
#define FR(i, a, b) for(int i = (a); i < (b); ++i)
#define F(i, n) FR(i, 0, n)
#define DR(i, a, b) for(int i = (b); i --> (a);)
#define D(i, n) DR(i, 0, n)
#define S(s) (int)(s).size()
#define ALL(x) (x).begin(), (x).end()
#define MI(x, a) (x) = min(x, a)
#define MA(x, a) (x) = max(x, a)
#define V vector
#define pb push_back
#define mp make_pair
using namespace std;
const bool debug = 1;
const int inf = 1e18;
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
int h,w;
cin>>h>>w;
vector<string> grid(h);
F(i,h){
cin>>grid[i];
}
vector<vector<int> > O(h,vector<int> (w+1,0));
vector<vector<int> > I(h+1, vector<int> (w,0));
int ans = 0;
for(int i = h-1; i>=0; i--){
for(int j = w-1; j>=0; j--){
O[i][j] = O[i][j+1] + (grid[i][j] == 'O');
I[i][j] = I[i+1][j] + (grid[i][j] == 'I');
ans+= (grid[i][j] == 'J') * O[i][j] * I[i][j];
}
}
cout<<ans<<endl;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
512 KB |
Output is correct |
| 4 |
Correct |
6 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
512 KB |
Output is correct |
| 6 |
Correct |
5 ms |
512 KB |
Output is correct |
| 7 |
Correct |
5 ms |
512 KB |
Output is correct |
| 8 |
Correct |
5 ms |
512 KB |
Output is correct |
| 9 |
Correct |
5 ms |
512 KB |
Output is correct |
| 10 |
Correct |
5 ms |
512 KB |
Output is correct |
| 11 |
Correct |
5 ms |
512 KB |
Output is correct |
| 12 |
Correct |
5 ms |
512 KB |
Output is correct |
| 13 |
Correct |
5 ms |
512 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
512 KB |
Output is correct |
| 4 |
Correct |
6 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
512 KB |
Output is correct |
| 6 |
Correct |
5 ms |
512 KB |
Output is correct |
| 7 |
Correct |
5 ms |
512 KB |
Output is correct |
| 8 |
Correct |
5 ms |
512 KB |
Output is correct |
| 9 |
Correct |
5 ms |
512 KB |
Output is correct |
| 10 |
Correct |
5 ms |
512 KB |
Output is correct |
| 11 |
Correct |
5 ms |
512 KB |
Output is correct |
| 12 |
Correct |
5 ms |
512 KB |
Output is correct |
| 13 |
Correct |
5 ms |
512 KB |
Output is correct |
| 14 |
Correct |
7 ms |
3840 KB |
Output is correct |
| 15 |
Correct |
5 ms |
512 KB |
Output is correct |
| 16 |
Correct |
7 ms |
2688 KB |
Output is correct |
| 17 |
Correct |
4 ms |
384 KB |
Output is correct |
| 18 |
Correct |
8 ms |
4864 KB |
Output is correct |
| 19 |
Correct |
8 ms |
4608 KB |
Output is correct |
| 20 |
Correct |
8 ms |
4736 KB |
Output is correct |
| 21 |
Correct |
8 ms |
4864 KB |
Output is correct |
| 22 |
Correct |
9 ms |
4608 KB |
Output is correct |
| 23 |
Correct |
8 ms |
4736 KB |
Output is correct |
| 24 |
Correct |
8 ms |
4864 KB |
Output is correct |
| 25 |
Correct |
9 ms |
4608 KB |
Output is correct |
| 26 |
Correct |
8 ms |
4736 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
512 KB |
Output is correct |
| 4 |
Correct |
6 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
512 KB |
Output is correct |
| 6 |
Correct |
5 ms |
512 KB |
Output is correct |
| 7 |
Correct |
5 ms |
512 KB |
Output is correct |
| 8 |
Correct |
5 ms |
512 KB |
Output is correct |
| 9 |
Correct |
5 ms |
512 KB |
Output is correct |
| 10 |
Correct |
5 ms |
512 KB |
Output is correct |
| 11 |
Correct |
5 ms |
512 KB |
Output is correct |
| 12 |
Correct |
5 ms |
512 KB |
Output is correct |
| 13 |
Correct |
5 ms |
512 KB |
Output is correct |
| 14 |
Correct |
7 ms |
3840 KB |
Output is correct |
| 15 |
Correct |
5 ms |
512 KB |
Output is correct |
| 16 |
Correct |
7 ms |
2688 KB |
Output is correct |
| 17 |
Correct |
4 ms |
384 KB |
Output is correct |
| 18 |
Correct |
8 ms |
4864 KB |
Output is correct |
| 19 |
Correct |
8 ms |
4608 KB |
Output is correct |
| 20 |
Correct |
8 ms |
4736 KB |
Output is correct |
| 21 |
Correct |
8 ms |
4864 KB |
Output is correct |
| 22 |
Correct |
9 ms |
4608 KB |
Output is correct |
| 23 |
Correct |
8 ms |
4736 KB |
Output is correct |
| 24 |
Correct |
8 ms |
4864 KB |
Output is correct |
| 25 |
Correct |
9 ms |
4608 KB |
Output is correct |
| 26 |
Correct |
8 ms |
4736 KB |
Output is correct |
| 27 |
Correct |
119 ms |
151164 KB |
Output is correct |
| 28 |
Correct |
5 ms |
1024 KB |
Output is correct |
| 29 |
Correct |
13 ms |
11904 KB |
Output is correct |
| 30 |
Correct |
5 ms |
768 KB |
Output is correct |
| 31 |
Correct |
88 ms |
111224 KB |
Output is correct |
| 32 |
Correct |
122 ms |
158968 KB |
Output is correct |
| 33 |
Correct |
133 ms |
159608 KB |
Output is correct |
| 34 |
Correct |
99 ms |
128888 KB |
Output is correct |
| 35 |
Correct |
121 ms |
158968 KB |
Output is correct |
| 36 |
Correct |
123 ms |
159608 KB |
Output is correct |
| 37 |
Correct |
123 ms |
160120 KB |
Output is correct |
| 38 |
Correct |
87 ms |
110328 KB |
Output is correct |
| 39 |
Correct |
85 ms |
110816 KB |
Output is correct |
