#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vb = vector<bool>;
using vvb = vector<vb>;
using vi = vector<int>;
using vvi = vector<vi>;
using vl = vector<ll>;
using vvl = vector<vl>;
using vc = vector<char>;
using vvc = vector<vc>;
using vs = vector<string>;
const ll mod = 1e9 + 7,inf = 1e18;
#define pb push_back
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
void setIO()
{
fast;
}
int main()
{
setIO();
int n,m;
cin>>n>>m;
vvc g(n,vc(m));
vvi je(n,vi(m)),o(n,vi(m));
for (int i = 0;i<n;i++)for (int j = 0;j<m;j++){cin>>g[i][j];
je[i][j] = (g[i][j] == 'O');
o[i][j] = (g[i][j] == 'I');
}
for (int i = n - 1;i>=0;i--)
for (int j = m - 1;j>=0;j--)
je[i][j] += (j != m - 1 ? je[i][j + 1] : 0),
o[i][j] += (i != n - 1 ? o[i + 1][j] : 0);
ll ans = 0;
for (int i = 0;i<n;i++)for (int j = 0;j<m;j++)
if (g[i][j] == 'J'){
ans += 1ll * je[i][j] * 1ll * o[i][j];
}
cout<<ans;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
2 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
332 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
1 ms |
320 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
2 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
332 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
1 ms |
320 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| 14 |
Correct |
8 ms |
2124 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 KB |
Output is correct |
| 16 |
Correct |
6 ms |
1612 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
10 ms |
2764 KB |
Output is correct |
| 19 |
Correct |
8 ms |
2636 KB |
Output is correct |
| 20 |
Correct |
8 ms |
2764 KB |
Output is correct |
| 21 |
Correct |
10 ms |
2824 KB |
Output is correct |
| 22 |
Correct |
8 ms |
2720 KB |
Output is correct |
| 23 |
Correct |
8 ms |
2764 KB |
Output is correct |
| 24 |
Correct |
9 ms |
2764 KB |
Output is correct |
| 25 |
Correct |
8 ms |
2636 KB |
Output is correct |
| 26 |
Correct |
8 ms |
2764 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
2 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
332 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
1 ms |
320 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| 14 |
Correct |
8 ms |
2124 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 KB |
Output is correct |
| 16 |
Correct |
6 ms |
1612 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
10 ms |
2764 KB |
Output is correct |
| 19 |
Correct |
8 ms |
2636 KB |
Output is correct |
| 20 |
Correct |
8 ms |
2764 KB |
Output is correct |
| 21 |
Correct |
10 ms |
2824 KB |
Output is correct |
| 22 |
Correct |
8 ms |
2720 KB |
Output is correct |
| 23 |
Correct |
8 ms |
2764 KB |
Output is correct |
| 24 |
Correct |
9 ms |
2764 KB |
Output is correct |
| 25 |
Correct |
8 ms |
2636 KB |
Output is correct |
| 26 |
Correct |
8 ms |
2764 KB |
Output is correct |
| 27 |
Correct |
282 ms |
83788 KB |
Output is correct |
| 28 |
Correct |
2 ms |
844 KB |
Output is correct |
| 29 |
Correct |
21 ms |
6684 KB |
Output is correct |
| 30 |
Correct |
2 ms |
460 KB |
Output is correct |
| 31 |
Correct |
220 ms |
61752 KB |
Output is correct |
| 32 |
Correct |
286 ms |
88144 KB |
Output is correct |
| 33 |
Correct |
260 ms |
88328 KB |
Output is correct |
| 34 |
Correct |
239 ms |
71512 KB |
Output is correct |
| 35 |
Correct |
267 ms |
88016 KB |
Output is correct |
| 36 |
Correct |
261 ms |
88324 KB |
Output is correct |
| 37 |
Correct |
307 ms |
88728 KB |
Output is correct |
| 38 |
Correct |
186 ms |
61328 KB |
Output is correct |
| 39 |
Correct |
183 ms |
61416 KB |
Output is correct |
