#include <bits/stdc++.h>
#define nl '\n'
signed main() {
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int H, W;
std::cin >> H >> W;
std::vector<std::string> S(H);
for (int i = 0; i < H; i++) {
std::cin >> S[i];
}
std::vector cnt(H, std::vector<int>(W + 1));
for (int i = 0; i < H; i++) {
for (int j = W - 1; j >= 0; j--) {
cnt[i][j] = cnt[i][j + 1] + (S[i][j] == 'O');
}
}
int64_t ans = 0;
for (int j = 0; j < W; j++) {
int64_t tot = 0;
for (int i = 0; i < H; i++) {
tot += (S[i][j] == 'J') * cnt[i][j];
if (S[i][j] == 'I') {
ans += tot;
}
}
}
std::cout << ans << nl;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
2 ms |
1624 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
2 ms |
1116 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
2 ms |
1884 KB |
Output is correct |
| 19 |
Correct |
2 ms |
1884 KB |
Output is correct |
| 20 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 21 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 22 |
Correct |
2 ms |
2032 KB |
Output is correct |
| 23 |
Correct |
3 ms |
1884 KB |
Output is correct |
| 24 |
Correct |
2 ms |
1884 KB |
Output is correct |
| 25 |
Correct |
2 ms |
1884 KB |
Output is correct |
| 26 |
Correct |
2 ms |
1884 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
2 ms |
1624 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
2 ms |
1116 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
2 ms |
1884 KB |
Output is correct |
| 19 |
Correct |
2 ms |
1884 KB |
Output is correct |
| 20 |
Correct |
2 ms |
1880 KB |
Output is correct |
| 21 |
Correct |
3 ms |
1880 KB |
Output is correct |
| 22 |
Correct |
2 ms |
2032 KB |
Output is correct |
| 23 |
Correct |
3 ms |
1884 KB |
Output is correct |
| 24 |
Correct |
2 ms |
1884 KB |
Output is correct |
| 25 |
Correct |
2 ms |
1884 KB |
Output is correct |
| 26 |
Correct |
2 ms |
1884 KB |
Output is correct |
| 27 |
Correct |
180 ms |
51404 KB |
Output is correct |
| 28 |
Correct |
1 ms |
600 KB |
Output is correct |
| 29 |
Correct |
5 ms |
4188 KB |
Output is correct |
| 30 |
Correct |
1 ms |
492 KB |
Output is correct |
| 31 |
Correct |
120 ms |
37784 KB |
Output is correct |
| 32 |
Correct |
189 ms |
54028 KB |
Output is correct |
| 33 |
Correct |
187 ms |
54240 KB |
Output is correct |
| 34 |
Correct |
143 ms |
43820 KB |
Output is correct |
| 35 |
Correct |
202 ms |
54032 KB |
Output is correct |
| 36 |
Correct |
206 ms |
54236 KB |
Output is correct |
| 37 |
Correct |
217 ms |
54404 KB |
Output is correct |
| 38 |
Correct |
140 ms |
37572 KB |
Output is correct |
| 39 |
Correct |
162 ms |
37460 KB |
Output is correct |
