#include <bits/stdc++.h>
#define x first
#define y second
#define pii pair<int,int>
#define ll long long
#define pll pair<ll,ll>
#define pbb pair<bool,bool>
#define mp make_pair
#define pb push_back
#define pf push_front
#define popb pop_back
#define popf pop_front
#define xmod (ll)(1e9+9)
#define hmod 1286031825167LL
using namespace std;
ll ans,n,m,ps_o[3005][3005],ps_i[3005][3005];
char s[3005][3005];
int main(){
ios::sync_with_stdio(false);
cin >> n >> m;
for (int i=1;i<=n;i++){
for (int j=1;j<=m;j++){
cin >> s[i][j];
ps_o[i][j]=ps_o[i][j-1];
ps_i[i][j]=ps_i[i-1][j];
if (s[i][j] == 'O')
ps_o[i][j]++;
if (s[i][j] == 'I')
ps_i[i][j]++;
}
}
for (int i=1;i<=n;i++){
for (int j=1;j<=m;j++){
if (s[i][j] == 'J')
ans+=(ps_o[i][m]-ps_o[i][j])*(ps_i[n][j]-ps_i[i][j]);
}
}
cout << ans << "\n";
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
492 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
492 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 6 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 7 |
Correct |
2 ms |
1516 KB |
Output is correct |
| 8 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 9 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1516 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1644 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1516 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
492 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
492 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 6 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 7 |
Correct |
2 ms |
1516 KB |
Output is correct |
| 8 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 9 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1516 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1644 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1516 KB |
Output is correct |
| 14 |
Correct |
12 ms |
9088 KB |
Output is correct |
| 15 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 16 |
Correct |
7 ms |
5356 KB |
Output is correct |
| 17 |
Correct |
1 ms |
492 KB |
Output is correct |
| 18 |
Correct |
15 ms |
9964 KB |
Output is correct |
| 19 |
Correct |
12 ms |
9836 KB |
Output is correct |
| 20 |
Correct |
14 ms |
9836 KB |
Output is correct |
| 21 |
Correct |
15 ms |
9964 KB |
Output is correct |
| 22 |
Correct |
13 ms |
9836 KB |
Output is correct |
| 23 |
Correct |
12 ms |
9836 KB |
Output is correct |
| 24 |
Correct |
15 ms |
9984 KB |
Output is correct |
| 25 |
Correct |
12 ms |
9836 KB |
Output is correct |
| 26 |
Correct |
12 ms |
9868 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
492 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
492 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 6 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 7 |
Correct |
2 ms |
1516 KB |
Output is correct |
| 8 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 9 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1516 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1644 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1644 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1516 KB |
Output is correct |
| 14 |
Correct |
12 ms |
9088 KB |
Output is correct |
| 15 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 16 |
Correct |
7 ms |
5356 KB |
Output is correct |
| 17 |
Correct |
1 ms |
492 KB |
Output is correct |
| 18 |
Correct |
15 ms |
9964 KB |
Output is correct |
| 19 |
Correct |
12 ms |
9836 KB |
Output is correct |
| 20 |
Correct |
14 ms |
9836 KB |
Output is correct |
| 21 |
Correct |
15 ms |
9964 KB |
Output is correct |
| 22 |
Correct |
13 ms |
9836 KB |
Output is correct |
| 23 |
Correct |
12 ms |
9836 KB |
Output is correct |
| 24 |
Correct |
15 ms |
9984 KB |
Output is correct |
| 25 |
Correct |
12 ms |
9836 KB |
Output is correct |
| 26 |
Correct |
12 ms |
9868 KB |
Output is correct |
| 27 |
Correct |
380 ms |
158708 KB |
Output is correct |
| 28 |
Correct |
17 ms |
26348 KB |
Output is correct |
| 29 |
Correct |
23 ms |
13932 KB |
Output is correct |
| 30 |
Correct |
2 ms |
876 KB |
Output is correct |
| 31 |
Correct |
290 ms |
131428 KB |
Output is correct |
| 32 |
Correct |
320 ms |
159140 KB |
Output is correct |
| 33 |
Correct |
293 ms |
158568 KB |
Output is correct |
| 34 |
Correct |
333 ms |
152420 KB |
Output is correct |
| 35 |
Correct |
337 ms |
159204 KB |
Output is correct |
| 36 |
Correct |
294 ms |
158568 KB |
Output is correct |
| 37 |
Correct |
398 ms |
159204 KB |
Output is correct |
| 38 |
Correct |
229 ms |
130788 KB |
Output is correct |
| 39 |
Correct |
212 ms |
130916 KB |
Output is correct |
