#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define db double
#define ll __int128
#define int long long
#define pb push_back
#define fs first
#define sd second
#define Mod long(1e9 + 7)
#define all(x) x.begin(), x.end()
#define unvisited long(-1)
#define Eps double(1e-9)
#define _for(i, n) for(int i = 0; i < (n); i++)
#define dbg(x) cout << #x ": " << x << endl;
const int Max = 1e6 + 7, Inf = 1e9 + 7;
void print(bool x) { cout << (x ? "YES" : "NO") << endl; }
string tostring (__int128 x)
{
string ans = "";
while(x > 0)
{
ans += (x % 10 + '0');
x /= 10;
}
reverse(all(ans));
return ans;
}
void solve()
{
int n, m; cin >> n >> m;
vector <vector<char>> c(n, vector <char> (m));
for(auto& u : c) for(auto& j : u) cin >> j;
vector <vector<int>> s1(n + 2, vector <int> (m + 2)),
s2(n + 2, vector <int> (m + 2));
for(int i = n-1; i >= 0; i--)
{
for(int j = m-1; j >= 0; j--)
s1[i][j] = s1[i][j+1] + (c[i][j] == 'O');
for(int j = m-1; j >= 0; j--)
s2[i][j] = s2[i+1][j] + (c[i][j] == 'I');
}
int ans = 0;
for(int i = 0; i < n; i++)
{
for(int j = 0; j < m; j++) if(c[i][j] == 'J')
{
ans += s1[i][j] * s2[i][j];
}
}
cout << ans << endl;
}
int32_t main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
int Q = 1; //cin >> Q;
while (Q--)
{
solve();
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
452 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
460 KB |
Output is correct |
5 |
Correct |
1 ms |
600 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
1 ms |
604 KB |
Output is correct |
9 |
Correct |
1 ms |
604 KB |
Output is correct |
10 |
Correct |
1 ms |
604 KB |
Output is correct |
11 |
Correct |
1 ms |
604 KB |
Output is correct |
12 |
Correct |
1 ms |
600 KB |
Output is correct |
13 |
Correct |
1 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
452 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
460 KB |
Output is correct |
5 |
Correct |
1 ms |
600 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
1 ms |
604 KB |
Output is correct |
9 |
Correct |
1 ms |
604 KB |
Output is correct |
10 |
Correct |
1 ms |
604 KB |
Output is correct |
11 |
Correct |
1 ms |
604 KB |
Output is correct |
12 |
Correct |
1 ms |
600 KB |
Output is correct |
13 |
Correct |
1 ms |
604 KB |
Output is correct |
14 |
Correct |
6 ms |
3676 KB |
Output is correct |
15 |
Correct |
1 ms |
604 KB |
Output is correct |
16 |
Correct |
3 ms |
2652 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
6 ms |
4700 KB |
Output is correct |
19 |
Correct |
5 ms |
4696 KB |
Output is correct |
20 |
Correct |
5 ms |
4864 KB |
Output is correct |
21 |
Correct |
6 ms |
4700 KB |
Output is correct |
22 |
Correct |
5 ms |
4700 KB |
Output is correct |
23 |
Correct |
5 ms |
4700 KB |
Output is correct |
24 |
Correct |
7 ms |
4700 KB |
Output is correct |
25 |
Correct |
5 ms |
4568 KB |
Output is correct |
26 |
Correct |
5 ms |
4700 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
452 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
460 KB |
Output is correct |
5 |
Correct |
1 ms |
600 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
1 ms |
604 KB |
Output is correct |
9 |
Correct |
1 ms |
604 KB |
Output is correct |
10 |
Correct |
1 ms |
604 KB |
Output is correct |
11 |
Correct |
1 ms |
604 KB |
Output is correct |
12 |
Correct |
1 ms |
600 KB |
Output is correct |
13 |
Correct |
1 ms |
604 KB |
Output is correct |
14 |
Correct |
6 ms |
3676 KB |
Output is correct |
15 |
Correct |
1 ms |
604 KB |
Output is correct |
16 |
Correct |
3 ms |
2652 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
6 ms |
4700 KB |
Output is correct |
19 |
Correct |
5 ms |
4696 KB |
Output is correct |
20 |
Correct |
5 ms |
4864 KB |
Output is correct |
21 |
Correct |
6 ms |
4700 KB |
Output is correct |
22 |
Correct |
5 ms |
4700 KB |
Output is correct |
23 |
Correct |
5 ms |
4700 KB |
Output is correct |
24 |
Correct |
7 ms |
4700 KB |
Output is correct |
25 |
Correct |
5 ms |
4568 KB |
Output is correct |
26 |
Correct |
5 ms |
4700 KB |
Output is correct |
27 |
Correct |
191 ms |
150420 KB |
Output is correct |
28 |
Correct |
1 ms |
1112 KB |
Output is correct |
29 |
Correct |
14 ms |
11828 KB |
Output is correct |
30 |
Correct |
1 ms |
860 KB |
Output is correct |
31 |
Correct |
151 ms |
110948 KB |
Output is correct |
32 |
Correct |
192 ms |
158284 KB |
Output is correct |
33 |
Correct |
184 ms |
158796 KB |
Output is correct |
34 |
Correct |
168 ms |
128448 KB |
Output is correct |
35 |
Correct |
182 ms |
158548 KB |
Output is correct |
36 |
Correct |
180 ms |
158940 KB |
Output is correct |
37 |
Correct |
216 ms |
159680 KB |
Output is correct |
38 |
Correct |
130 ms |
109904 KB |
Output is correct |
39 |
Correct |
131 ms |
110520 KB |
Output is correct |