A string consisting of short hand form of occurrence of alphabets will be passed as input. The program must expand the code and print the alphabets.
Input Format:
The first line will contain the short hand form of the code of length L.
Boundary Conditions:
2 <= L <= 20
Output Format:
The alphabets occurrence based on the short hand code.
Example Input/Output 1:
Input:
a3b5a2
Output:
aaabbbbbaa
Explanation:
a3 implies a has to occur 3 times and hence a is printed thrice.
b5 implies b has to be occur five times and hence b is printed five times.
a2 again implies a has to occur 2 times and hence a is printed thrice.
Example Input/Output 2:
Input:
z2m6c4
Output:
zzmmmmmmcccc
Example Input/Output 3:
Input:
abc5
Output:
aaaaabbbbbccccc
Explanation:
Here there is no number after a and b. This implies the next immediate number of occurrence is applicable to both a and b.
Hence 5 which occurs after c is applicable to a and b too. So all the three alphabets a,b,c are printed five times.
import java.util.*;
class Hello {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
String str=sc.nextLine();
char[] ch=str.toCharArray();
int i,n=ch.length,num,j,l,k;
String st="";
for(i=0;i<n;i++)
{
if(ch[i]>='a'&&ch[i]<='z')
st+=ch[i];
else
{
num=Character.getNumericValue(ch[i]);
l=st.length();
char[] c=st.toCharArray();
st="";
for(k=0;k<l;k++)
{
for(j=0;j<num;j++)
{
st+=c[k];
}
}
System.out.print(st);
st="";
}
}
}
}