#include "bits/stdc++.h"
using namespace std;
/*
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
using ordered_set = tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update>;
*/
#define all(x) begin(x), end(x)
#define sz(x) (int)x.size()
using ll = long long;
const int mod = 1e9+7;
void solve(int tc) {
int n, m;
cin >> n >> m;
vector<vector<char>> v(n, vector<char>(m));
vector<vector<int>> ing(n, vector<int>(m)), orb(n, vector<int>(m));
for (int i = 0; i < n; ++i) {
for (int j = 0; j < m; ++j) {
cin >> v[i][j];
ing[i][j] = (v[i][j] == 'I');
if (i) ing[i][j] += ing[i-1][j];
orb[i][j] = (v[i][j] == 'O');
if (j) orb[i][j] += orb[i][j-1];
}
}
ll ans = 0;
for (int i = 0; i < n; ++i)
for (int j = 0; j < m; ++j)
ans += (v[i][j] == 'J') * (ing[n-1][j] - ing[i][j]) * (orb[i][m-1] - orb[i][j]);
cout << ans << '\n';
}
signed main() {
ios_base::sync_with_stdio(false); cin.tie(NULL);
int tc = 1;
//cin >> tc;
for (int i = 1; i <= tc; ++i) solve(i);
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
316 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 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 |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
316 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 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 |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
6 ms |
2304 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
4 ms |
1612 KB |
Output is correct |
17 |
Correct |
1 ms |
332 KB |
Output is correct |
18 |
Correct |
7 ms |
2764 KB |
Output is correct |
19 |
Correct |
7 ms |
2636 KB |
Output is correct |
20 |
Correct |
7 ms |
2764 KB |
Output is correct |
21 |
Correct |
7 ms |
2764 KB |
Output is correct |
22 |
Correct |
7 ms |
2664 KB |
Output is correct |
23 |
Correct |
7 ms |
2764 KB |
Output is correct |
24 |
Correct |
7 ms |
2760 KB |
Output is correct |
25 |
Correct |
7 ms |
2604 KB |
Output is correct |
26 |
Correct |
7 ms |
2764 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
316 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 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 |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
6 ms |
2304 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
4 ms |
1612 KB |
Output is correct |
17 |
Correct |
1 ms |
332 KB |
Output is correct |
18 |
Correct |
7 ms |
2764 KB |
Output is correct |
19 |
Correct |
7 ms |
2636 KB |
Output is correct |
20 |
Correct |
7 ms |
2764 KB |
Output is correct |
21 |
Correct |
7 ms |
2764 KB |
Output is correct |
22 |
Correct |
7 ms |
2664 KB |
Output is correct |
23 |
Correct |
7 ms |
2764 KB |
Output is correct |
24 |
Correct |
7 ms |
2760 KB |
Output is correct |
25 |
Correct |
7 ms |
2604 KB |
Output is correct |
26 |
Correct |
7 ms |
2764 KB |
Output is correct |
27 |
Correct |
227 ms |
83896 KB |
Output is correct |
28 |
Correct |
2 ms |
844 KB |
Output is correct |
29 |
Correct |
18 ms |
6604 KB |
Output is correct |
30 |
Correct |
1 ms |
460 KB |
Output is correct |
31 |
Correct |
166 ms |
61752 KB |
Output is correct |
32 |
Correct |
239 ms |
88064 KB |
Output is correct |
33 |
Correct |
237 ms |
88400 KB |
Output is correct |
34 |
Correct |
195 ms |
71524 KB |
Output is correct |
35 |
Correct |
240 ms |
88108 KB |
Output is correct |
36 |
Correct |
238 ms |
88388 KB |
Output is correct |
37 |
Correct |
241 ms |
88640 KB |
Output is correct |
38 |
Correct |
184 ms |
61248 KB |
Output is correct |
39 |
Correct |
166 ms |
61448 KB |
Output is correct |