UVA - 494 Kindergarten Counting Game

最新推荐文章于 2017-08-05 02:27:31 发布

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#Uva #Kindergarten Countin

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本文介绍了一个简单的程序，用于统计输入字符串中的单词数量。通过逐字符读取并利用字母判断来实现单词计数，适用于多行文本输入。

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

题意：给你一句话叫你算出有多少个单词。

#include <stdio.h>
#include <ctype.h>
int main() {
	char ch;
	int cnt = 0;
	int flag = 0;
	while((ch = getchar()) != EOF) {
		if(ch != '\n') {	
			if(isalpha(ch)) {
				if( !flag) {
					flag++;
					cnt++;
				}
			}
			else {
				flag = 0;
			}
		}
		else {
			printf("%d\n",cnt);
			cnt = 0;
		}
	}
	return 0;
}