#include <iostream>
#include <vector>
using namespace std;
using ll = long long;
int h, w;
vector<string> g;
vector<vector<ll>> a;
ll solve() {
ll ans = 0;
for (int i = 0; i < h; i++) {
ll c = 0;
for (int j = 0; j < w; j++) {
if (g[i][j] == 'J') c += a[h - 1][j] - a[i][j];
else if (g[i][j] == 'O') ans += c;
}
}
return ans;
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cin >> h >> w;
g.resize(h), a.resize(h, vector<ll>(w, 0));
for (int i = 0; i < h; i++) {
cin >> g[i];
for (int j = 0; j < w; j++) {
a[i][j] = (g[i][j] == 'I') + (i > 0 ? a[i - 1][j] : 0);
}
}
cout << solve() << '\n';
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
0 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
0 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
3 ms |
2132 KB |
Output is correct |
| 15 |
Correct |
1 ms |
320 KB |
Output is correct |
| 16 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 19 |
Correct |
2 ms |
2632 KB |
Output is correct |
| 20 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 22 |
Correct |
3 ms |
2636 KB |
Output is correct |
| 23 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 24 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 25 |
Correct |
2 ms |
2640 KB |
Output is correct |
| 26 |
Correct |
2 ms |
2768 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
0 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
3 ms |
2132 KB |
Output is correct |
| 15 |
Correct |
1 ms |
320 KB |
Output is correct |
| 16 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 19 |
Correct |
2 ms |
2632 KB |
Output is correct |
| 20 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 22 |
Correct |
3 ms |
2636 KB |
Output is correct |
| 23 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 24 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 25 |
Correct |
2 ms |
2640 KB |
Output is correct |
| 26 |
Correct |
2 ms |
2768 KB |
Output is correct |
| 27 |
Correct |
84 ms |
84420 KB |
Output is correct |
| 28 |
Correct |
1 ms |
596 KB |
Output is correct |
| 29 |
Correct |
6 ms |
6740 KB |
Output is correct |
| 30 |
Correct |
1 ms |
468 KB |
Output is correct |
| 31 |
Correct |
63 ms |
62164 KB |
Output is correct |
| 32 |
Correct |
71 ms |
88748 KB |
Output is correct |
| 33 |
Correct |
64 ms |
89160 KB |
Output is correct |
| 34 |
Correct |
71 ms |
71988 KB |
Output is correct |
| 35 |
Correct |
65 ms |
88852 KB |
Output is correct |
| 36 |
Correct |
71 ms |
89164 KB |
Output is correct |
| 37 |
Correct |
101 ms |
89344 KB |
Output is correct |
| 38 |
Correct |
46 ms |
61644 KB |
Output is correct |
| 39 |
Correct |
45 ms |
61940 KB |
Output is correct |
