#include <bits/stdc++.h>
#include<unordered_map>
using namespace std;
#define mp make_pair
#define pb push_back
#define pii pair<int,int>
#define fi first
#define se second
#define int long long
void solve() {
int n,m; cin >> n >> m;
vector<vector<int>> ingot(n, vector<int>(m)), orb(n, vector<int>(m));
vector<vector<char>> grid(n, vector<char>(m));
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
cin >> grid[i][j];
if (grid[i][j] == 'I') ingot[i][j]++;
if (grid[i][j] == 'O') orb[i][j]++;
}
}
for (int j = 0;j < m; j++) {
for(int i=n-2;i>=0;i--){
ingot[i][j] += ingot[i+1][j];
}
}
for (int i = 0; i < n; i++) {
for (int j = m - 2; j >= 0; j--) {
orb[i][j] += orb[i][j + 1];
}
}
int ans = 0;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
if (grid[i][j] == 'J') {
ans += ingot[i][j] * orb[i][j];
}
}
}
cout << ans << '\n';
}
signed main() {
ios_base::sync_with_stdio(0); cin.tie(0);
solve();
}
# |
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 |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
572 KB |
Output is correct |
7 |
Correct |
1 ms |
456 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
452 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 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 |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
572 KB |
Output is correct |
7 |
Correct |
1 ms |
456 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
452 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
9 ms |
3668 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
5 ms |
2516 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
12 ms |
4692 KB |
Output is correct |
19 |
Correct |
9 ms |
4552 KB |
Output is correct |
20 |
Correct |
11 ms |
4692 KB |
Output is correct |
21 |
Correct |
12 ms |
4692 KB |
Output is correct |
22 |
Correct |
10 ms |
4564 KB |
Output is correct |
23 |
Correct |
9 ms |
4692 KB |
Output is correct |
24 |
Correct |
11 ms |
4692 KB |
Output is correct |
25 |
Correct |
11 ms |
4604 KB |
Output is correct |
26 |
Correct |
13 ms |
4564 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 |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
572 KB |
Output is correct |
7 |
Correct |
1 ms |
456 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
452 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
9 ms |
3668 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
5 ms |
2516 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
12 ms |
4692 KB |
Output is correct |
19 |
Correct |
9 ms |
4552 KB |
Output is correct |
20 |
Correct |
11 ms |
4692 KB |
Output is correct |
21 |
Correct |
12 ms |
4692 KB |
Output is correct |
22 |
Correct |
10 ms |
4564 KB |
Output is correct |
23 |
Correct |
9 ms |
4692 KB |
Output is correct |
24 |
Correct |
11 ms |
4692 KB |
Output is correct |
25 |
Correct |
11 ms |
4604 KB |
Output is correct |
26 |
Correct |
13 ms |
4564 KB |
Output is correct |
27 |
Correct |
393 ms |
150280 KB |
Output is correct |
28 |
Correct |
2 ms |
980 KB |
Output is correct |
29 |
Correct |
27 ms |
11752 KB |
Output is correct |
30 |
Correct |
2 ms |
724 KB |
Output is correct |
31 |
Correct |
324 ms |
110656 KB |
Output is correct |
32 |
Correct |
360 ms |
158092 KB |
Output is correct |
33 |
Correct |
313 ms |
158604 KB |
Output is correct |
34 |
Correct |
356 ms |
128256 KB |
Output is correct |
35 |
Correct |
357 ms |
158200 KB |
Output is correct |
36 |
Correct |
352 ms |
158604 KB |
Output is correct |
37 |
Correct |
466 ms |
159024 KB |
Output is correct |
38 |
Correct |
256 ms |
109748 KB |
Output is correct |
39 |
Correct |
238 ms |
110220 KB |
Output is correct |