#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho
using ll=long long;
using ld=long double;
int const INF=1000000005;
ll const LINF=1000000000000000005;
ll const mod=1000000007;
ld const PI=3.14159265359;
ll const MAX_N=3e5+5;
ld const EPS=0.00000001;
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define endl '\n'
#define sz(a) (int)a.size()
#define CODE_START ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
ll n,sum1[3005][3005],sum2[3005],m;
char a[3005][3005];
int32_t main(){
CODE_START;
#ifdef LOCAL
ifstream cin("input.txt");
#endif
cin>>n>>m;
for(ll i=1;i<=n;i++)
{
for(ll j=1;j<=m;j++)
{
cin>>a[i][j];
}
}
for(ll j=1;j<=m;j++)
{
ll sum=0;
for(ll i=n;i>=1;i--)
{
if(a[i][j]=='I'){
sum++;
}else if(a[i][j]=='J'){
sum1[i][j]=sum;
}
}
}
ll ans=0;
for(ll i=1;i<=n;i++)
{
ll sum=0;
for(ll j=1;j<=m;j++)
{
//cout<<sum1[i][j]<<' ';
if(a[i][j]=='J'){
sum+=sum1[i][j];
}else if(a[i][j]=='O'){
ans+=sum;
}
}
//cout<<endl;
}
cout<<ans<<endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
324 KB |
Output is correct |
2 |
Correct |
0 ms |
324 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
1108 KB |
Output is correct |
6 |
Correct |
2 ms |
976 KB |
Output is correct |
7 |
Correct |
1 ms |
980 KB |
Output is correct |
8 |
Correct |
1 ms |
1108 KB |
Output is correct |
9 |
Correct |
1 ms |
968 KB |
Output is correct |
10 |
Correct |
1 ms |
980 KB |
Output is correct |
11 |
Correct |
1 ms |
1108 KB |
Output is correct |
12 |
Correct |
1 ms |
980 KB |
Output is correct |
13 |
Correct |
1 ms |
972 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
324 KB |
Output is correct |
2 |
Correct |
0 ms |
324 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
1108 KB |
Output is correct |
6 |
Correct |
2 ms |
976 KB |
Output is correct |
7 |
Correct |
1 ms |
980 KB |
Output is correct |
8 |
Correct |
1 ms |
1108 KB |
Output is correct |
9 |
Correct |
1 ms |
968 KB |
Output is correct |
10 |
Correct |
1 ms |
980 KB |
Output is correct |
11 |
Correct |
1 ms |
1108 KB |
Output is correct |
12 |
Correct |
1 ms |
980 KB |
Output is correct |
13 |
Correct |
1 ms |
972 KB |
Output is correct |
14 |
Correct |
7 ms |
5460 KB |
Output is correct |
15 |
Correct |
2 ms |
3156 KB |
Output is correct |
16 |
Correct |
3 ms |
2772 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
9 ms |
5908 KB |
Output is correct |
19 |
Correct |
6 ms |
4952 KB |
Output is correct |
20 |
Correct |
6 ms |
4564 KB |
Output is correct |
21 |
Correct |
8 ms |
5972 KB |
Output is correct |
22 |
Correct |
7 ms |
5320 KB |
Output is correct |
23 |
Correct |
5 ms |
4564 KB |
Output is correct |
24 |
Correct |
9 ms |
5944 KB |
Output is correct |
25 |
Correct |
6 ms |
4948 KB |
Output is correct |
26 |
Correct |
6 ms |
4560 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
324 KB |
Output is correct |
2 |
Correct |
0 ms |
324 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
1108 KB |
Output is correct |
6 |
Correct |
2 ms |
976 KB |
Output is correct |
7 |
Correct |
1 ms |
980 KB |
Output is correct |
8 |
Correct |
1 ms |
1108 KB |
Output is correct |
9 |
Correct |
1 ms |
968 KB |
Output is correct |
10 |
Correct |
1 ms |
980 KB |
Output is correct |
11 |
Correct |
1 ms |
1108 KB |
Output is correct |
12 |
Correct |
1 ms |
980 KB |
Output is correct |
13 |
Correct |
1 ms |
972 KB |
Output is correct |
14 |
Correct |
7 ms |
5460 KB |
Output is correct |
15 |
Correct |
2 ms |
3156 KB |
Output is correct |
16 |
Correct |
3 ms |
2772 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
9 ms |
5908 KB |
Output is correct |
19 |
Correct |
6 ms |
4952 KB |
Output is correct |
20 |
Correct |
6 ms |
4564 KB |
Output is correct |
21 |
Correct |
8 ms |
5972 KB |
Output is correct |
22 |
Correct |
7 ms |
5320 KB |
Output is correct |
23 |
Correct |
5 ms |
4564 KB |
Output is correct |
24 |
Correct |
9 ms |
5944 KB |
Output is correct |
25 |
Correct |
6 ms |
4948 KB |
Output is correct |
26 |
Correct |
6 ms |
4560 KB |
Output is correct |
27 |
Correct |
273 ms |
87996 KB |
Output is correct |
28 |
Correct |
8 ms |
15956 KB |
Output is correct |
29 |
Correct |
13 ms |
4692 KB |
Output is correct |
30 |
Correct |
1 ms |
596 KB |
Output is correct |
31 |
Correct |
205 ms |
72484 KB |
Output is correct |
32 |
Correct |
196 ms |
66096 KB |
Output is correct |
33 |
Correct |
204 ms |
53276 KB |
Output is correct |
34 |
Correct |
246 ms |
84048 KB |
Output is correct |
35 |
Correct |
225 ms |
72048 KB |
Output is correct |
36 |
Correct |
205 ms |
53276 KB |
Output is correct |
37 |
Correct |
315 ms |
88512 KB |
Output is correct |
38 |
Correct |
156 ms |
50100 KB |
Output is correct |
39 |
Correct |
149 ms |
39908 KB |
Output is correct |