// #pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define pb push_back
#define ld long double
#define fi first
#define se second
#define ll long long
#define ss(x) (int) x.size()
#define mp make_pair
#define FOR(i, n) for(int i = 1; n >= i; ++i)
using namespace std;
using namespace __gnu_pbds;
const int nax = 5005;
int n, m;
string s[nax];
int dol[nax][nax], prawo[nax][nax];
ll ans = 0;
int main() {
cin.tie(0);
ios_base::sync_with_stdio(0);
cin >> n >> m;
for(int i = 0; i < n; ++i) {
cin >> s[i];
}
for(int i = m - 1; 0 <= i; --i) {
for(int j = 0; j < n; ++j) {
prawo[j][i] = prawo[j][i + 1] + (s[j][i + 1] == 'O');
}
}
for(int i = n - 1; 0 <= i; --i) {
for(int j = 0; j < m; ++j) {
dol[i][j] = dol[i + 1][j] + (s[i + 1][j] == 'I');
}
}
for(int i = 0; i < n; ++i) {
for(int j = 0; j < m; ++j) {
ans += (dol[i][j] * prawo[i][j] * (s[i][j] == 'J'));
}
}
cout << ans;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
512 KB |
Output is correct |
| 2 |
Correct |
2 ms |
512 KB |
Output is correct |
| 3 |
Correct |
2 ms |
512 KB |
Output is correct |
| 4 |
Correct |
2 ms |
512 KB |
Output is correct |
| 5 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1280 KB |
Output is correct |
| 8 |
Correct |
3 ms |
1456 KB |
Output is correct |
| 9 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 10 |
Correct |
2 ms |
1280 KB |
Output is correct |
| 11 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 12 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1280 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
512 KB |
Output is correct |
| 2 |
Correct |
2 ms |
512 KB |
Output is correct |
| 3 |
Correct |
2 ms |
512 KB |
Output is correct |
| 4 |
Correct |
2 ms |
512 KB |
Output is correct |
| 5 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1280 KB |
Output is correct |
| 8 |
Correct |
3 ms |
1456 KB |
Output is correct |
| 9 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 10 |
Correct |
2 ms |
1280 KB |
Output is correct |
| 11 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 12 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1280 KB |
Output is correct |
| 14 |
Correct |
8 ms |
6400 KB |
Output is correct |
| 15 |
Correct |
5 ms |
3968 KB |
Output is correct |
| 16 |
Correct |
5 ms |
3840 KB |
Output is correct |
| 17 |
Correct |
2 ms |
640 KB |
Output is correct |
| 18 |
Correct |
11 ms |
7012 KB |
Output is correct |
| 19 |
Correct |
10 ms |
6912 KB |
Output is correct |
| 20 |
Correct |
10 ms |
6784 KB |
Output is correct |
| 21 |
Correct |
11 ms |
6912 KB |
Output is correct |
| 22 |
Correct |
9 ms |
6912 KB |
Output is correct |
| 23 |
Correct |
10 ms |
6912 KB |
Output is correct |
| 24 |
Correct |
23 ms |
7040 KB |
Output is correct |
| 25 |
Correct |
10 ms |
6912 KB |
Output is correct |
| 26 |
Correct |
9 ms |
6912 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
512 KB |
Output is correct |
| 2 |
Correct |
2 ms |
512 KB |
Output is correct |
| 3 |
Correct |
2 ms |
512 KB |
Output is correct |
| 4 |
Correct |
2 ms |
512 KB |
Output is correct |
| 5 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1280 KB |
Output is correct |
| 8 |
Correct |
3 ms |
1456 KB |
Output is correct |
| 9 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 10 |
Correct |
2 ms |
1280 KB |
Output is correct |
| 11 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 12 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1280 KB |
Output is correct |
| 14 |
Correct |
8 ms |
6400 KB |
Output is correct |
| 15 |
Correct |
5 ms |
3968 KB |
Output is correct |
| 16 |
Correct |
5 ms |
3840 KB |
Output is correct |
| 17 |
Correct |
2 ms |
640 KB |
Output is correct |
| 18 |
Correct |
11 ms |
7012 KB |
Output is correct |
| 19 |
Correct |
10 ms |
6912 KB |
Output is correct |
| 20 |
Correct |
10 ms |
6784 KB |
Output is correct |
| 21 |
Correct |
11 ms |
6912 KB |
Output is correct |
| 22 |
Correct |
9 ms |
6912 KB |
Output is correct |
| 23 |
Correct |
10 ms |
6912 KB |
Output is correct |
| 24 |
Correct |
23 ms |
7040 KB |
Output is correct |
| 25 |
Correct |
10 ms |
6912 KB |
Output is correct |
| 26 |
Correct |
9 ms |
6912 KB |
Output is correct |
| 27 |
Correct |
300 ms |
108536 KB |
Output is correct |
| 28 |
Correct |
18 ms |
19456 KB |
Output is correct |
| 29 |
Correct |
12 ms |
8960 KB |
Output is correct |
| 30 |
Correct |
2 ms |
768 KB |
Output is correct |
| 31 |
Correct |
221 ms |
82196 KB |
Output is correct |
| 32 |
Correct |
329 ms |
112940 KB |
Output is correct |
| 33 |
Correct |
319 ms |
113044 KB |
Output is correct |
| 34 |
Correct |
256 ms |
95352 KB |
Output is correct |
| 35 |
Correct |
311 ms |
112804 KB |
Output is correct |
| 36 |
Correct |
305 ms |
113144 KB |
Output is correct |
| 37 |
Correct |
317 ms |
113520 KB |
Output is correct |
| 38 |
Correct |
202 ms |
81656 KB |
Output is correct |
| 39 |
Correct |
214 ms |
81912 KB |
Output is correct |
