Answer Posted / vignesh1988i

#include<stdio.h>
#include<conio.h>
#include<string.h>
int fun(char *,int);
void main()
{
long int c,l;
char a1[20];
printf("enter the numerical string :");
scanf("%s",&a1);
l=strlen(a1);
c=fun(a,l);
printf("\n%ld",l);
getch();
}
int fun(char *a,long int l1)
{
long int a1[]=
{1,10,100,1000,10000,100000,1000000,10000000,100000000},c;
int p=a1[l1-1],c=0;
for(int i=0;a[i]!='\0';i++)
{
y=((int)a[i])*p; /*TYPE CASTING*/
c=c+y;
p=p/10;
}
return c;
}

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