Word Count Program

#include<stdio.h>

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

/* count lines, words, and characters in input */

main()
{
        int c, nl, nw, nc, state;

        state = OUT;
        nl = nw = nc = 0;
        while ((c = getchar()) != EOF) {
                ++nc;
                if (c == '\n')
                        ++nl;
                if (c == ' ' || c == '\n' || c = '\t')
                        state = OUT;
                else if (state == OUT) {
                        state = IN;
                        ++nw;
                }
        }
        printf("%d %d %d\n", nl, nw, nc);
}