#include <bits/stdc++.h>
typedef long long ll;
int main() {
std::ios::sync_with_stdio(0);
int h, w; std::cin >> h >> w;
std::vector <std::vector <char>> g(3001, std::vector <char> (3001));
std::vector <std::vector <ll>> a(3001, std::vector <ll> (3001, 0)), b(a);
for (int i = 1; i <= h; i++)
for (int j = 1; j <= w; j++) {
std::cin >> g[i][j];
a[i][j] = a[i][j - 1];
b[i][j] = b[i - 1][j];
a[i][j] += g[i][j] == 'O';
b[i][j] += g[i][j] == 'I';
}
ll ans = 0;
for (int i = 1; i <= h; i++)
for (int j = 1; j <= w; j++)
if (g[i][j] == 'J')
ans += (a[i][w] - a[i][j]) * (b[h][j] - b[i][j]);
std::cout << ans << "\n";
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
88 ms |
150520 KB |
Output is correct |
| 2 |
Correct |
88 ms |
150392 KB |
Output is correct |
| 3 |
Correct |
89 ms |
150392 KB |
Output is correct |
| 4 |
Correct |
88 ms |
150392 KB |
Output is correct |
| 5 |
Correct |
90 ms |
150508 KB |
Output is correct |
| 6 |
Correct |
90 ms |
150520 KB |
Output is correct |
| 7 |
Correct |
90 ms |
150520 KB |
Output is correct |
| 8 |
Correct |
89 ms |
150520 KB |
Output is correct |
| 9 |
Correct |
89 ms |
150520 KB |
Output is correct |
| 10 |
Correct |
91 ms |
150504 KB |
Output is correct |
| 11 |
Correct |
91 ms |
150520 KB |
Output is correct |
| 12 |
Correct |
90 ms |
150520 KB |
Output is correct |
| 13 |
Correct |
88 ms |
150520 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
88 ms |
150520 KB |
Output is correct |
| 2 |
Correct |
88 ms |
150392 KB |
Output is correct |
| 3 |
Correct |
89 ms |
150392 KB |
Output is correct |
| 4 |
Correct |
88 ms |
150392 KB |
Output is correct |
| 5 |
Correct |
90 ms |
150508 KB |
Output is correct |
| 6 |
Correct |
90 ms |
150520 KB |
Output is correct |
| 7 |
Correct |
90 ms |
150520 KB |
Output is correct |
| 8 |
Correct |
89 ms |
150520 KB |
Output is correct |
| 9 |
Correct |
89 ms |
150520 KB |
Output is correct |
| 10 |
Correct |
91 ms |
150504 KB |
Output is correct |
| 11 |
Correct |
91 ms |
150520 KB |
Output is correct |
| 12 |
Correct |
90 ms |
150520 KB |
Output is correct |
| 13 |
Correct |
88 ms |
150520 KB |
Output is correct |
| 14 |
Correct |
96 ms |
150776 KB |
Output is correct |
| 15 |
Correct |
89 ms |
150520 KB |
Output is correct |
| 16 |
Correct |
96 ms |
150780 KB |
Output is correct |
| 17 |
Correct |
89 ms |
150520 KB |
Output is correct |
| 18 |
Correct |
97 ms |
150652 KB |
Output is correct |
| 19 |
Correct |
96 ms |
150776 KB |
Output is correct |
| 20 |
Correct |
96 ms |
150776 KB |
Output is correct |
| 21 |
Correct |
101 ms |
150648 KB |
Output is correct |
| 22 |
Correct |
100 ms |
150648 KB |
Output is correct |
| 23 |
Correct |
97 ms |
150648 KB |
Output is correct |
| 24 |
Correct |
100 ms |
150776 KB |
Output is correct |
| 25 |
Correct |
97 ms |
150648 KB |
Output is correct |
| 26 |
Correct |
97 ms |
150648 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
88 ms |
150520 KB |
Output is correct |
| 2 |
Correct |
88 ms |
150392 KB |
Output is correct |
| 3 |
Correct |
89 ms |
150392 KB |
Output is correct |
| 4 |
Correct |
88 ms |
150392 KB |
Output is correct |
| 5 |
Correct |
90 ms |
150508 KB |
Output is correct |
| 6 |
Correct |
90 ms |
150520 KB |
Output is correct |
| 7 |
Correct |
90 ms |
150520 KB |
Output is correct |
| 8 |
Correct |
89 ms |
150520 KB |
Output is correct |
| 9 |
Correct |
89 ms |
150520 KB |
Output is correct |
| 10 |
Correct |
91 ms |
150504 KB |
Output is correct |
| 11 |
Correct |
91 ms |
150520 KB |
Output is correct |
| 12 |
Correct |
90 ms |
150520 KB |
Output is correct |
| 13 |
Correct |
88 ms |
150520 KB |
Output is correct |
| 14 |
Correct |
96 ms |
150776 KB |
Output is correct |
| 15 |
Correct |
89 ms |
150520 KB |
Output is correct |
| 16 |
Correct |
96 ms |
150780 KB |
Output is correct |
| 17 |
Correct |
89 ms |
150520 KB |
Output is correct |
| 18 |
Correct |
97 ms |
150652 KB |
Output is correct |
| 19 |
Correct |
96 ms |
150776 KB |
Output is correct |
| 20 |
Correct |
96 ms |
150776 KB |
Output is correct |
| 21 |
Correct |
101 ms |
150648 KB |
Output is correct |
| 22 |
Correct |
100 ms |
150648 KB |
Output is correct |
| 23 |
Correct |
97 ms |
150648 KB |
Output is correct |
| 24 |
Correct |
100 ms |
150776 KB |
Output is correct |
| 25 |
Correct |
97 ms |
150648 KB |
Output is correct |
| 26 |
Correct |
97 ms |
150648 KB |
Output is correct |
| 27 |
Correct |
372 ms |
157560 KB |
Output is correct |
| 28 |
Correct |
94 ms |
150520 KB |
Output is correct |
| 29 |
Correct |
109 ms |
151160 KB |
Output is correct |
| 30 |
Correct |
90 ms |
150480 KB |
Output is correct |
| 31 |
Correct |
297 ms |
156536 KB |
Output is correct |
| 32 |
Correct |
357 ms |
157560 KB |
Output is correct |
| 33 |
Correct |
350 ms |
157560 KB |
Output is correct |
| 34 |
Correct |
329 ms |
157560 KB |
Output is correct |
| 35 |
Correct |
356 ms |
157560 KB |
Output is correct |
| 36 |
Correct |
346 ms |
157432 KB |
Output is correct |
| 37 |
Correct |
390 ms |
157720 KB |
Output is correct |
| 38 |
Correct |
270 ms |
156536 KB |
Output is correct |
| 39 |
Correct |
269 ms |
156536 KB |
Output is correct |
