#include <bits/stdc++.h>
using namespace std;
#define EmiliaMyWife ios::sync_with_stdio(0); cin.tie(0);
using ll = int64_t;
using ull = uint64_t;
using uint = uint32_t;
using ld = long double;
const int INF = 0x3f3f3f3f;
const int MOD = 1e9 + 7;
const ll LINF = ll(4e15) + ll(2e15);
const double EPS = 1e-9;
static int LamyIsCute = []() {
EmiliaMyWife
return 48763;
}();
signed main() {
int n, m;
cin >> n >> m;
vector<string> arr(n);
vector<vector<int>> cnt(n, vector<int>(m));
ll ans = 0;
for(auto &s : arr)
cin >> s;
for(int i = n - 1; ~i; i--) {
for(int j = 0; j < m; j++) {
if(i + 1 < n)
cnt[i][j] = cnt[i + 1][j];
if(arr[i][j] == 'I')
cnt[i][j]++;
}
}
for(int i = 0; i < n; i++) {
for(int j = m - 1, res = 0; ~j; j--) {
if(arr[i][j] == 'O')
res++;
if(arr[i][j] == 'J')
ans += res * cnt[i][j];
}
}
cout << ans << '\n';
}
| # |
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 |
1 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 |
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 |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 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 |
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 |
5 ms |
1296 KB |
Output is correct |
| 15 |
Correct |
1 ms |
384 KB |
Output is correct |
| 16 |
Correct |
2 ms |
972 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
5 ms |
1484 KB |
Output is correct |
| 19 |
Correct |
3 ms |
1536 KB |
Output is correct |
| 20 |
Correct |
2 ms |
1484 KB |
Output is correct |
| 21 |
Correct |
5 ms |
1484 KB |
Output is correct |
| 22 |
Correct |
3 ms |
1484 KB |
Output is correct |
| 23 |
Correct |
2 ms |
1484 KB |
Output is correct |
| 24 |
Correct |
4 ms |
1484 KB |
Output is correct |
| 25 |
Correct |
2 ms |
1484 KB |
Output is correct |
| 26 |
Correct |
2 ms |
1484 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 |
1 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 |
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 |
5 ms |
1296 KB |
Output is correct |
| 15 |
Correct |
1 ms |
384 KB |
Output is correct |
| 16 |
Correct |
2 ms |
972 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
5 ms |
1484 KB |
Output is correct |
| 19 |
Correct |
3 ms |
1536 KB |
Output is correct |
| 20 |
Correct |
2 ms |
1484 KB |
Output is correct |
| 21 |
Correct |
5 ms |
1484 KB |
Output is correct |
| 22 |
Correct |
3 ms |
1484 KB |
Output is correct |
| 23 |
Correct |
2 ms |
1484 KB |
Output is correct |
| 24 |
Correct |
4 ms |
1484 KB |
Output is correct |
| 25 |
Correct |
2 ms |
1484 KB |
Output is correct |
| 26 |
Correct |
2 ms |
1484 KB |
Output is correct |
| 27 |
Correct |
135 ms |
42884 KB |
Output is correct |
| 28 |
Correct |
1 ms |
572 KB |
Output is correct |
| 29 |
Correct |
6 ms |
3568 KB |
Output is correct |
| 30 |
Correct |
1 ms |
332 KB |
Output is correct |
| 31 |
Correct |
110 ms |
31564 KB |
Output is correct |
| 32 |
Correct |
88 ms |
44996 KB |
Output is correct |
| 33 |
Correct |
62 ms |
45260 KB |
Output is correct |
| 34 |
Correct |
112 ms |
36476 KB |
Output is correct |
| 35 |
Correct |
75 ms |
45240 KB |
Output is correct |
| 36 |
Correct |
76 ms |
45436 KB |
Output is correct |
| 37 |
Correct |
143 ms |
45704 KB |
Output is correct |
| 38 |
Correct |
47 ms |
31464 KB |
Output is correct |
| 39 |
Correct |
47 ms |
31584 KB |
Output is correct |
