// Src : Vux2Code
#include <bits/stdc++.h>
#define pq_rvs pll,vector<pll>,greater<pll>
using namespace std;
typedef long long ll;
typedef pair <ll, ll> pll;
const ll maxN = 3e3 + 5, inf64 = 1e18, mod = 1e9 + 7, maxLog = 20;
ll t = 1;
ll n, m, Iunder [maxN] [maxN], Oright [maxN] [maxN], ans;
char a [maxN] [maxN];
void solve () {
cin >> n >> m;
for (int i = 1; i <= n; i ++) for (int j = 1; j <= m; j ++) cin >> a [i] [j];
for (int i = n; i >= 1; i --) for (int j = m; j >= 1; j --) {
Iunder [i] [j] = Iunder [i + 1] [j] + (a [i] [j] == 'I');
Oright [i] [j] = Oright [i] [j + 1] + (a [i] [j] == 'O');
ans += (a [i] [j] == 'J') * Iunder [i] [j] * Oright [i] [j];
}
cout << ans;
}
int main (){
ios::sync_with_stdio (0);
cin. tie (0);
cout. tie (0);
//freopen (".inp", "r", stdin);
//freopen (".out", "w", stdout);
//cin >> t;
while (t --) solve ();
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
1628 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1624 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1628 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1488 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1628 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1628 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1372 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
1628 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1624 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1628 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1488 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1628 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1628 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 14 |
Correct |
6 ms |
9052 KB |
Output is correct |
| 15 |
Correct |
2 ms |
5020 KB |
Output is correct |
| 16 |
Correct |
3 ms |
5468 KB |
Output is correct |
| 17 |
Correct |
0 ms |
604 KB |
Output is correct |
| 18 |
Correct |
6 ms |
10072 KB |
Output is correct |
| 19 |
Correct |
6 ms |
9820 KB |
Output is correct |
| 20 |
Correct |
6 ms |
9912 KB |
Output is correct |
| 21 |
Correct |
6 ms |
10076 KB |
Output is correct |
| 22 |
Correct |
6 ms |
9816 KB |
Output is correct |
| 23 |
Correct |
6 ms |
9820 KB |
Output is correct |
| 24 |
Correct |
7 ms |
10076 KB |
Output is correct |
| 25 |
Correct |
6 ms |
9828 KB |
Output is correct |
| 26 |
Correct |
7 ms |
9820 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
1628 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1624 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1628 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1488 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1628 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1628 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 14 |
Correct |
6 ms |
9052 KB |
Output is correct |
| 15 |
Correct |
2 ms |
5020 KB |
Output is correct |
| 16 |
Correct |
3 ms |
5468 KB |
Output is correct |
| 17 |
Correct |
0 ms |
604 KB |
Output is correct |
| 18 |
Correct |
6 ms |
10072 KB |
Output is correct |
| 19 |
Correct |
6 ms |
9820 KB |
Output is correct |
| 20 |
Correct |
6 ms |
9912 KB |
Output is correct |
| 21 |
Correct |
6 ms |
10076 KB |
Output is correct |
| 22 |
Correct |
6 ms |
9816 KB |
Output is correct |
| 23 |
Correct |
6 ms |
9820 KB |
Output is correct |
| 24 |
Correct |
7 ms |
10076 KB |
Output is correct |
| 25 |
Correct |
6 ms |
9828 KB |
Output is correct |
| 26 |
Correct |
7 ms |
9820 KB |
Output is correct |
| 27 |
Correct |
145 ms |
158548 KB |
Output is correct |
| 28 |
Correct |
10 ms |
26456 KB |
Output is correct |
| 29 |
Correct |
11 ms |
14024 KB |
Output is correct |
| 30 |
Correct |
1 ms |
860 KB |
Output is correct |
| 31 |
Correct |
110 ms |
131532 KB |
Output is correct |
| 32 |
Correct |
145 ms |
159060 KB |
Output is correct |
| 33 |
Correct |
148 ms |
158548 KB |
Output is correct |
| 34 |
Correct |
137 ms |
152388 KB |
Output is correct |
| 35 |
Correct |
148 ms |
159060 KB |
Output is correct |
| 36 |
Correct |
148 ms |
158616 KB |
Output is correct |
| 37 |
Correct |
147 ms |
159056 KB |
Output is correct |
| 38 |
Correct |
106 ms |
130896 KB |
Output is correct |
| 39 |
Correct |
114 ms |
130896 KB |
Output is correct |
