#include <bits/stdc++.h>
#define all(i) (i).begin(), (i).end()
using namespace std;
template<typename T1, typename ...T2>
void debug(bool _split, T1 i, T2 ...j) {
if (_split)
cerr << ", ";
cerr << i;
debug(true, j...);
}
#define debug(args...) cout << "Line" << __LINE__ << " : [" << #args << << "] is [" << debug(false, args) << "]" << endl;
typedef pair<int, int> pi;
typedef long long ll;
const int inf = 0x3f3f3f3f, lg = 20;
const ll mod = 1e9 + 7, INF = 0x3f3f3f3f;
signed main() {
ios::sync_with_stdio(0), cin.tie(0);
int n, m;
cin >> n >> m;
string s[n];
for (string &i : s)
cin >> i;
int a[n][m], b[n][m];
ll ans = 0;
for (int i = n - 1; ~i; --i)
for (int j = m - 1; ~j; --j) {
a[i][j] = i < n - 1 ? a[i + 1][j] : 0;
a[i][j] += s[i][j] == 'I';
b[i][j] = j < m - 1 ? b[i][j + 1] : 0;
b[i][j] += s[i][j] == 'O';
if (s[i][j] == 'J')
ans += a[i][j] * b[i][j];
}
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
0 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
0 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
332 KB |
Output is correct |
14 |
Correct |
2 ms |
1996 KB |
Output is correct |
15 |
Correct |
0 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
1356 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
3 ms |
2508 KB |
Output is correct |
19 |
Correct |
3 ms |
2380 KB |
Output is correct |
20 |
Correct |
2 ms |
2380 KB |
Output is correct |
21 |
Correct |
3 ms |
2508 KB |
Output is correct |
22 |
Correct |
2 ms |
2380 KB |
Output is correct |
23 |
Correct |
2 ms |
2380 KB |
Output is correct |
24 |
Correct |
3 ms |
2508 KB |
Output is correct |
25 |
Correct |
2 ms |
2380 KB |
Output is correct |
26 |
Correct |
3 ms |
2380 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
0 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
332 KB |
Output is correct |
13 |
Correct |
0 ms |
332 KB |
Output is correct |
14 |
Correct |
2 ms |
1996 KB |
Output is correct |
15 |
Correct |
0 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
1356 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
3 ms |
2508 KB |
Output is correct |
19 |
Correct |
3 ms |
2380 KB |
Output is correct |
20 |
Correct |
2 ms |
2380 KB |
Output is correct |
21 |
Correct |
3 ms |
2508 KB |
Output is correct |
22 |
Correct |
2 ms |
2380 KB |
Output is correct |
23 |
Correct |
2 ms |
2380 KB |
Output is correct |
24 |
Correct |
3 ms |
2508 KB |
Output is correct |
25 |
Correct |
2 ms |
2380 KB |
Output is correct |
26 |
Correct |
3 ms |
2380 KB |
Output is correct |
27 |
Correct |
80 ms |
76032 KB |
Output is correct |
28 |
Correct |
1 ms |
460 KB |
Output is correct |
29 |
Correct |
5 ms |
5964 KB |
Output is correct |
30 |
Correct |
1 ms |
460 KB |
Output is correct |
31 |
Correct |
60 ms |
55940 KB |
Output is correct |
32 |
Correct |
65 ms |
79948 KB |
Output is correct |
33 |
Correct |
67 ms |
80204 KB |
Output is correct |
34 |
Correct |
68 ms |
64840 KB |
Output is correct |
35 |
Correct |
67 ms |
79876 KB |
Output is correct |
36 |
Correct |
68 ms |
80392 KB |
Output is correct |
37 |
Correct |
91 ms |
80440 KB |
Output is correct |
38 |
Correct |
48 ms |
55424 KB |
Output is correct |
39 |
Correct |
46 ms |
55628 KB |
Output is correct |