#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
template<class T>
using ordered_set = tree<T, null_type,less<T>, rb_tree_tag,tree_order_statistics_node_update>;
#define int long long
#define ft first
#define sc second
const int mod=1e9+7,INF=1e17,N=3005;
char s[N][N];
map<int,int> mp,mp1;
main(){
ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
int n,m;
cin >> n >> m;
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
cin >> s[i][j];
if(s[i][j]=='O'){
mp1[i]++;
}
if(s[i][j]=='I'){
mp[j]++;
}
}
}
int ans=0;
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
if(s[i][j]=='J'){
ans+=(mp1[i]*mp[j]);
}
if(s[i][j]=='O'){
mp1[i]--;
}
if(s[i][j]=='I'){
mp[j]--;
}
}
}
cout << ans;
}
Compilation message
joi2019_ho_t1.cpp:15:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
15 | main(){
| ^~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
328 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
2 ms |
596 KB |
Output is correct |
6 |
Correct |
1 ms |
572 KB |
Output is correct |
7 |
Correct |
1 ms |
596 KB |
Output is correct |
8 |
Correct |
1 ms |
596 KB |
Output is correct |
9 |
Correct |
1 ms |
596 KB |
Output is correct |
10 |
Correct |
1 ms |
596 KB |
Output is correct |
11 |
Correct |
1 ms |
596 KB |
Output is correct |
12 |
Correct |
1 ms |
596 KB |
Output is correct |
13 |
Correct |
1 ms |
596 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
328 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
2 ms |
596 KB |
Output is correct |
6 |
Correct |
1 ms |
572 KB |
Output is correct |
7 |
Correct |
1 ms |
596 KB |
Output is correct |
8 |
Correct |
1 ms |
596 KB |
Output is correct |
9 |
Correct |
1 ms |
596 KB |
Output is correct |
10 |
Correct |
1 ms |
596 KB |
Output is correct |
11 |
Correct |
1 ms |
596 KB |
Output is correct |
12 |
Correct |
1 ms |
596 KB |
Output is correct |
13 |
Correct |
1 ms |
596 KB |
Output is correct |
14 |
Correct |
20 ms |
2004 KB |
Output is correct |
15 |
Correct |
2 ms |
1492 KB |
Output is correct |
16 |
Correct |
10 ms |
1236 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
24 ms |
2104 KB |
Output is correct |
19 |
Correct |
17 ms |
1976 KB |
Output is correct |
20 |
Correct |
14 ms |
2004 KB |
Output is correct |
21 |
Correct |
23 ms |
2068 KB |
Output is correct |
22 |
Correct |
18 ms |
2008 KB |
Output is correct |
23 |
Correct |
15 ms |
2004 KB |
Output is correct |
24 |
Correct |
28 ms |
2004 KB |
Output is correct |
25 |
Correct |
17 ms |
2008 KB |
Output is correct |
26 |
Correct |
15 ms |
2004 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
328 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
2 ms |
596 KB |
Output is correct |
6 |
Correct |
1 ms |
572 KB |
Output is correct |
7 |
Correct |
1 ms |
596 KB |
Output is correct |
8 |
Correct |
1 ms |
596 KB |
Output is correct |
9 |
Correct |
1 ms |
596 KB |
Output is correct |
10 |
Correct |
1 ms |
596 KB |
Output is correct |
11 |
Correct |
1 ms |
596 KB |
Output is correct |
12 |
Correct |
1 ms |
596 KB |
Output is correct |
13 |
Correct |
1 ms |
596 KB |
Output is correct |
14 |
Correct |
20 ms |
2004 KB |
Output is correct |
15 |
Correct |
2 ms |
1492 KB |
Output is correct |
16 |
Correct |
10 ms |
1236 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
24 ms |
2104 KB |
Output is correct |
19 |
Correct |
17 ms |
1976 KB |
Output is correct |
20 |
Correct |
14 ms |
2004 KB |
Output is correct |
21 |
Correct |
23 ms |
2068 KB |
Output is correct |
22 |
Correct |
18 ms |
2008 KB |
Output is correct |
23 |
Correct |
15 ms |
2004 KB |
Output is correct |
24 |
Correct |
28 ms |
2004 KB |
Output is correct |
25 |
Correct |
17 ms |
2008 KB |
Output is correct |
26 |
Correct |
15 ms |
2004 KB |
Output is correct |
27 |
Correct |
939 ms |
17808 KB |
Output is correct |
28 |
Correct |
5 ms |
7380 KB |
Output is correct |
29 |
Correct |
46 ms |
1904 KB |
Output is correct |
30 |
Correct |
3 ms |
468 KB |
Output is correct |
31 |
Correct |
687 ms |
11796 KB |
Output is correct |
32 |
Correct |
853 ms |
13428 KB |
Output is correct |
33 |
Correct |
662 ms |
13296 KB |
Output is correct |
34 |
Correct |
784 ms |
12996 KB |
Output is correct |
35 |
Correct |
832 ms |
13388 KB |
Output is correct |
36 |
Correct |
623 ms |
13356 KB |
Output is correct |
37 |
Correct |
905 ms |
13332 KB |
Output is correct |
38 |
Correct |
501 ms |
11812 KB |
Output is correct |
39 |
Correct |
426 ms |
11884 KB |
Output is correct |