Can you count? | Editorial by aksingh007

Count the total number of vowels till index i.
Now, calculate total number of ways to fill that particular '_' .

```

import java.util.*;
class TestClass {
    public static boolean isVowel(char ch){
        if(ch=='a' || ch=='e'|| ch=='i' || ch=='o' || ch=='u')
            return true;
            else
        return false;
    }
    public static void main(String args[] ) throws Exception {
        Scanner sc = new Scanner(System.in);
        int t=sc.nextInt();
        while(t-->0){
            String str=sc.next();
            int arr[]=new int[27];
            long ans=1;
            for(int i=0;i<str.length();i++){
                char ch=str.charAt(i);
                if(isVowel(ch))
                    arr[ch-97]=1;
                else
                    if(ch=='_'){
                        int count=0;
                        for(int k=0;k<27;k++)
                            count+=arr[k];
                        ans*=count;
                    }
                }
            System.out.println(ans);
        }
        
        
    }
}

```

Can you count? | Editorial by aksingh007

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