Write a program that prints its input one word per line.

#include <stdio.h>

#define    IN      1    /*inside a word */
#define    OUT     0    /*outside a word */

/*print input one word per line */
int main(){
    int c, state;

     state =OUT;
     while ((c =getchar()) != EOF){
         if (c == ' ' || c == '\n' || c == '\t'){
             if(state == IN ){
                putchar('\n');
                state = OUT;
             }
          }else if (state == OUT){
             state =IN;     /*beginning of word */
             putchar(c);
          }else             /*inside a word */
               putchar(c);
     }
}