UVa 494 Kindergarten Counting Game (字符串处理)

494 - Kindergarten Counting Game

Time limit: 3.000 seconds

http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=94&page=show_problem&problem=435

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

27109

只要两个单词以非字母字符隔开，就算两个单词。

完整代码：

/*0.009s*/#include<cstdio>#include<cstring>#include<cctype>char str[300];int main(void){int i, cnt;bool hasalpha;while (gets(str)){cnt = 0;hasalpha = false;for (i = 0; str[i]; i++){if (isalpha(str[i])){if (!hasalpha){++cnt;hasalpha = true;}}else{if (hasalpha)hasalpha = false;}}printf("%d\n", cnt);}return 0;}