寒假刷题之3——小朋友来数数

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.

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 ...

Output

2

7
10
9

   复制这些内容就够蛋疼啊。。。

   就是普通的计算单词数目，以前好像写过，很快就写了一段：

#include<stdio.h>

int main()
{
	char letter;
	int i = 0;
	
	for (; (scanf("%c", &letter)) != EOF; letter == ' ' ? i ++ : NULL)
		letter == '\n'? (printf("%d\n", i + 1), i = 0) : NULL;
	
	printf("%d\n", i + 1);
	
	return 0;
}

  传上去竟然Wrong answer了。。。

  好吧我认真地看了原题目，连续的字母算一个单词，我是按空格数+1来算的。

  改代码吧。。。

  完全改掉代码，换思路来写，用isalpha判断第一个字符是不是字母，然后读取后面的字母直到其他字符，继续累积。

  没想到还给wa了两次，都是我不小心，忘记把i初始化。

  现在终于ac了，虽然不是很好的代码。。。贴出代码：

#include<stdio.h>
#include<ctype.h>

int main()
{
	char letter;
	int i = 0;
	
	for (; (scanf("%c", &letter)) != EOF;){
		if (isalpha(letter)){
			i ++;
			while (isalpha(letter))
			scanf("%c", &letter);
		}
		if (letter == '\n'){
			printf("%d\n", i);
			i = 0;
		}
	}
	
	return 0;
}

   嗯，这次就这样吧。要休息一会了，不然就太累了。。。