How do I complete K&R Exercise 2-4?

Question

I\'m learning how to write programs in C using the k&r book (The C Programming Language) and I have a problem with one of the exercises. It\'s asking me to detect and re

Answer 1

void squeeze(char s1[], char s2[])
{
    int i,j,k;
    char c;
    for(i=0;s2[i]!='\0';i++)
    {
        c=s2[i];
        for(j=k=0;s1[j]!='\0';j++)
            if(s1[j]!=c)
                s1[k++]=s1[j];
            s1[k]='\0';
    }
}