#pragma GCC optimize("Ofast")
#include<bits/stdc++.h>
#define int long long
using namespace std;
const int sz = 3e3 + 9;
vector <int> os[sz], is[sz];
char a[sz][sz];
signed main() {
cin.tie(nullptr)->sync_with_stdio(false);
int h, w;
cin >> h >> w;
int r = 0;
for (int i = 1; i <= h; i ++) {
for (int j = 1; j <= w; j ++) {
cin >> a[i][j];
if ('O' == a[i][j]) {
os[i].push_back(j);
} else if ('I' == a[i][j]) {
is[j].push_back(i);
}
}
}
for (int i = 1; i <= h; i ++) {
for (int j = 1; j <= w; j ++) {
if ('J' == a[i][j]) {
int oc = os[i].end() - upper_bound(begin(os[i]), end(os[i]), j);
int ic = is[j].end() - upper_bound(begin(is[j]), end(is[j]), i);
r += oc * ic;
}
}
}
cout << r << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
604 KB |
Output is correct |
2 |
Correct |
0 ms |
604 KB |
Output is correct |
3 |
Correct |
0 ms |
604 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
2908 KB |
Output is correct |
6 |
Correct |
1 ms |
2908 KB |
Output is correct |
7 |
Correct |
1 ms |
2908 KB |
Output is correct |
8 |
Correct |
1 ms |
2908 KB |
Output is correct |
9 |
Correct |
1 ms |
2908 KB |
Output is correct |
10 |
Correct |
1 ms |
2904 KB |
Output is correct |
11 |
Correct |
1 ms |
2908 KB |
Output is correct |
12 |
Correct |
1 ms |
2908 KB |
Output is correct |
13 |
Correct |
1 ms |
2908 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
604 KB |
Output is correct |
2 |
Correct |
0 ms |
604 KB |
Output is correct |
3 |
Correct |
0 ms |
604 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
2908 KB |
Output is correct |
6 |
Correct |
1 ms |
2908 KB |
Output is correct |
7 |
Correct |
1 ms |
2908 KB |
Output is correct |
8 |
Correct |
1 ms |
2908 KB |
Output is correct |
9 |
Correct |
1 ms |
2908 KB |
Output is correct |
10 |
Correct |
1 ms |
2904 KB |
Output is correct |
11 |
Correct |
1 ms |
2908 KB |
Output is correct |
12 |
Correct |
1 ms |
2908 KB |
Output is correct |
13 |
Correct |
1 ms |
2908 KB |
Output is correct |
14 |
Correct |
10 ms |
4444 KB |
Output is correct |
15 |
Correct |
1 ms |
2652 KB |
Output is correct |
16 |
Correct |
3 ms |
3676 KB |
Output is correct |
17 |
Correct |
0 ms |
604 KB |
Output is correct |
18 |
Correct |
12 ms |
4956 KB |
Output is correct |
19 |
Correct |
5 ms |
5212 KB |
Output is correct |
20 |
Correct |
5 ms |
4188 KB |
Output is correct |
21 |
Correct |
13 ms |
4952 KB |
Output is correct |
22 |
Correct |
6 ms |
4444 KB |
Output is correct |
23 |
Correct |
5 ms |
4188 KB |
Output is correct |
24 |
Correct |
13 ms |
4444 KB |
Output is correct |
25 |
Correct |
5 ms |
4956 KB |
Output is correct |
26 |
Correct |
4 ms |
4188 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
604 KB |
Output is correct |
2 |
Correct |
0 ms |
604 KB |
Output is correct |
3 |
Correct |
0 ms |
604 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
2908 KB |
Output is correct |
6 |
Correct |
1 ms |
2908 KB |
Output is correct |
7 |
Correct |
1 ms |
2908 KB |
Output is correct |
8 |
Correct |
1 ms |
2908 KB |
Output is correct |
9 |
Correct |
1 ms |
2908 KB |
Output is correct |
10 |
Correct |
1 ms |
2904 KB |
Output is correct |
11 |
Correct |
1 ms |
2908 KB |
Output is correct |
12 |
Correct |
1 ms |
2908 KB |
Output is correct |
13 |
Correct |
1 ms |
2908 KB |
Output is correct |
14 |
Correct |
10 ms |
4444 KB |
Output is correct |
15 |
Correct |
1 ms |
2652 KB |
Output is correct |
16 |
Correct |
3 ms |
3676 KB |
Output is correct |
17 |
Correct |
0 ms |
604 KB |
Output is correct |
18 |
Correct |
12 ms |
4956 KB |
Output is correct |
19 |
Correct |
5 ms |
5212 KB |
Output is correct |
20 |
Correct |
5 ms |
4188 KB |
Output is correct |
21 |
Correct |
13 ms |
4952 KB |
Output is correct |
22 |
Correct |
6 ms |
4444 KB |
Output is correct |
23 |
Correct |
5 ms |
4188 KB |
Output is correct |
24 |
Correct |
13 ms |
4444 KB |
Output is correct |
25 |
Correct |
5 ms |
4956 KB |
Output is correct |
26 |
Correct |
4 ms |
4188 KB |
Output is correct |
27 |
Correct |
551 ms |
68828 KB |
Output is correct |
28 |
Correct |
2 ms |
9052 KB |
Output is correct |
29 |
Correct |
13 ms |
8296 KB |
Output is correct |
30 |
Correct |
2 ms |
860 KB |
Output is correct |
31 |
Correct |
386 ms |
58136 KB |
Output is correct |
32 |
Correct |
214 ms |
100432 KB |
Output is correct |
33 |
Correct |
227 ms |
81488 KB |
Output is correct |
34 |
Correct |
429 ms |
63488 KB |
Output is correct |
35 |
Correct |
252 ms |
80464 KB |
Output is correct |
36 |
Correct |
213 ms |
81528 KB |
Output is correct |
37 |
Correct |
612 ms |
85840 KB |
Output is correct |
38 |
Correct |
120 ms |
70228 KB |
Output is correct |
39 |
Correct |
155 ms |
64340 KB |
Output is correct |