View Code of Problem 43

#include<stdio.h>
#include<math.h>
#include<string.h>
#include<ctype.h>
 int main()
 {
 	char a[100]={'\0'},b[100]={'\0'},i,k=0;
 	gets(a);
	 for(i=0;i<strlen(a);i++)
	 {
	 	if(isalpha(a[i]))
	 	b[k++]=a[i];
	  } 
	  puts(b);
 	return 0;
 }