#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl "\n"
#define pb push_back
#define ff first
#define ss second
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
void solve(){
int n,m;
cin >> n >> m;
vector<string> s(n);
for(int i = 0; i < n; i++){
cin >> s[i];
}
vector<vector<int>> cnt(n,vector<int>(m));
for(int j = 0; j < m; j++){
for(int i = n - 1; i >= 0; i--){
cnt[i][j] = (i + 1 < n ? cnt[i + 1][j] : 0) + (s[i][j] == 'I');
}
}
int ans = 0;
for(int i = 0; i < n; i++){
int freq = 0;
for(int j = m - 1; j >= 0; j--){
freq += (s[i][j] == 'O');
if(s[i][j] == 'J'){
ans += freq * cnt[i][j];
}
}
}
cout << ans << endl;
}
signed main(){
ios::sync_with_stdio(0);
cin.tie(0);
int t = 1;
// cin >> t;
while(t--)
solve();
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
328 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
328 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
4 ms |
2128 KB |
Output is correct |
| 15 |
Correct |
1 ms |
340 KB |
Output is correct |
| 16 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 17 |
Correct |
0 ms |
324 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2760 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 20 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 22 |
Correct |
3 ms |
2644 KB |
Output is correct |
| 23 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 24 |
Correct |
5 ms |
2764 KB |
Output is correct |
| 25 |
Correct |
3 ms |
2660 KB |
Output is correct |
| 26 |
Correct |
3 ms |
2732 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
328 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
4 ms |
2128 KB |
Output is correct |
| 15 |
Correct |
1 ms |
340 KB |
Output is correct |
| 16 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 17 |
Correct |
0 ms |
324 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2760 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2644 KB |
Output is correct |
| 20 |
Correct |
3 ms |
2764 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 22 |
Correct |
3 ms |
2644 KB |
Output is correct |
| 23 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 24 |
Correct |
5 ms |
2764 KB |
Output is correct |
| 25 |
Correct |
3 ms |
2660 KB |
Output is correct |
| 26 |
Correct |
3 ms |
2732 KB |
Output is correct |
| 27 |
Correct |
200 ms |
79400 KB |
Output is correct |
| 28 |
Correct |
1 ms |
596 KB |
Output is correct |
| 29 |
Correct |
8 ms |
6696 KB |
Output is correct |
| 30 |
Correct |
1 ms |
456 KB |
Output is correct |
| 31 |
Correct |
141 ms |
59396 KB |
Output is correct |
| 32 |
Correct |
187 ms |
83348 KB |
Output is correct |
| 33 |
Correct |
187 ms |
83736 KB |
Output is correct |
| 34 |
Correct |
168 ms |
68232 KB |
Output is correct |
| 35 |
Correct |
184 ms |
83224 KB |
Output is correct |
| 36 |
Correct |
200 ms |
83524 KB |
Output is correct |
| 37 |
Correct |
225 ms |
83724 KB |
Output is correct |
| 38 |
Correct |
127 ms |
58916 KB |
Output is correct |
| 39 |
Correct |
120 ms |
58960 KB |
Output is correct |
