Reading The C Programing Language-Counting words

A simple Programing: Couting the lines,words,charcaters in INPUT.

#include <stdio.h>
#define IN 0; // inside a word
#define OUT 1;//outside a word

/*
   couting the words,lines,characters in INPUT

*/

main()
{
      int  nw,nl,nc;//record the numbers of words,lines,characters
      int c;//record the character every step
      int state;//record the state (in a word,out  a word)
      nw=nl=nc=0;

      while((c=getchar()) != EOF)
      {
            ++nc;
            if(c == '/n') ++nl; 
            else if(c==' ' || c=='\t' || c=='\n')
                      state=out;
            else if(state==out)
             {
                      state=in;
                       ++nw;
              }
         }
         
          println("%d  %d  %d",nw,nl,nc);
}

   

Although the program is simple, you should pay attention to it.