UVaOj 494 Kindergarten Counting Game

复习了the C programming language 中的单词记数

/*494 - Kindergarten Counting Game*/
# include <stdio.h>
# include <ctype.h>
# define IN 1
# define OUT 0
int main()
{
    int ans,state;
    char ch;
    ans = 0;
    state = OUT;
    while ((ch=getchar()) != EOF)
    {
        if (!isalpha(ch) && ch!='\n')
            state = OUT;
        else if (ch == '\n')
        {
            printf("%d\n", ans);
            ans = 0;
            state = OUT;
        }
        else if (state == OUT)
        {
            state = IN;
            ++ans;
        }
    }
    return 0;
}