C Program to count words, new line and characters

Count Program

//count words, new line and characters

#include <stdio.h>

#define IN 1
#define OUT 0

int main()
{
    int c, nc, nl, nw, state;
    
    state = OUT;
    nc = nl = nw = 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",nc,nl,nw);
}