输入一行字符,统计其中单词个数.各单词之间用空格分隔,空格数可以是多个

#include <stdio.h>
#define IN 1        // 在单词内
#define OUT 0        //在单词外

int main(void)
{
    int c, nl, nw, nc, state;
    state = OUT;
    nl = nw = nc = 0;

    while ((c = getchar()) != '\n')
    {
        if (c == ' ' || c== '\t')
        {
            ++nl;
            state = OUT;
        }
        else if (state == OUT)        
        {
            state = IN;
            ++nw;            
        }
    }

    printf ("%d %d\n", nl, nw);
    return 0;
}

我中午试试，谢啦