单词统计

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#define IN  1
#define OUT 0

int main(int argc, char **argv)
{
    int count = 0;
    int status = OUT;
    char c;

    while ( (c = getchar()) != EOF) {
        if (c != ' ' && c != '\t' && c != '\n') {
            if (status == OUT) {
                status = IN;
                count++;
            }
        } else
            status = OUT;
    }

    printf("word count: %d\n", count);
    exit(EXIT_SUCCESS);
}