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

#include    
main()
{
    int CurrentChar, LastChar;
    LastChar = '1';
    while ((CurrentChar = getchar()) != EOF)
    {
        if (CurrentChar != ' ')
        {
            putchar(CurrentChar);
            LastChar = '1';
        }
        else
        {
            if (LastChar != ' ')
            {
                putchar(CurrentChar);               
                LastChar = ' ';
            }                   
        }   
    }
}