K&R Exercise 1-9 (C)

Question

\"Write a program to copy its input to its output, replacing each string of one or more blanks by a single blank.\"

I\'m assuming by thi

Answer 1

This is what I got:

while ch = getchar()
   if ch != ' '
      putchar(ch)
   if ch == ' '
      if last_seen_ch != ch
         putchar(ch)
   last_seen_ch = ch