494 - Kindergarten Counting Game

Everybody sit down in a circle. Ok. Listen to me carefully.

``Woooooo, you scwewy wabbit!''

Now, could someone tell me how many words I just said?

Input and Output

Input to your program will consist of a series of lines, each line containing multiple words (at least one). A ``word'' is defined as a consecutive sequence of letters (upper and/or lower case).

Your program should output a word count for each line of input. Each word count should be printed on a separate line.

 

算一算每行有几个字（word）。
Word的定义是连续的字元（letter: A~Z a~z）所组成的字。

Input

测试资料每笔一行，每行至少有一个字。

Output

输出每一行的word数。

Sample Input

Meep Meep!
I tot I taw a putty tat.
I did! I did! I did taw a putty tat.
Shsssssssssh ... I am hunting wabbits. Heh Heh Heh Heh ...

Sample Output

2
7
10
9

解题思路：先确定怎样才算是一个单词，再确定如何区分标点和单词

#include<stdio.h>
int main()
{int n,i,sum;
char a[100000];
while(gets(a)){for(i=1,n=0;a[i];i++){
               if((a[i]<'A'||a[i]>'Z')&&(a[i]<'a'||a[i]>'z'))
               {if((a[i-1]>='A'&&a[i-1]<='Z')||(a[i-1]>='a'&&a[i-1]<='z'))
               n++;}
               }
               printf("%d\n",n);
               }
return 0;
}

注意：一个单词的定义