Example-
Number is 3245
Length is 4.
Number is 9087245
Length is 7
program-
#include < stdio.h>
int main()
{
int n,length=0;
printf("Enter Number\n");
scanf("%d",&n);
while(n)
{
length++;
n=n/10;
}
printf("Length is %d",length);
}
Enter Number
1234
Length is 4
Enter Number
543
Length is 3