UVa——幼儿园数数游戏（494）

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.

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

以上是幼儿园问题的题目，其主要意思为输入一句话，然后显示一下这句话里面有多少个单词

下面是我的代码：

#include
#include
#include

int main()
{
	int i;
	int flag,found;
	int num;
	char s;
	while(s!=EOF)
	{
		num=0;
		flag=0;
		found=0;
		while((s=getchar())!='\n'&&s!=EOF)
		{
			if(!((s>='a'&&s<='z')||(s>='A'&&s<='Z')))
			{
				flag=0;
			}
			else if(flag==0)
			{
				flag=1;
				num++;
			}
			if(num)
				found=1; 

		}
		if(found)
			printf("%d\n",num);
	}
	return 0;
}

这里的return 0 也是至关重要的，我刚开始没有写，就出现了Runing Error的提示。所以初学者多加注意。