还是topcoder的一个问题,HowEasy编写的,用JAVA实现-

Problem Statement

       

***Note:　Please keep programs under 7000 characters in length.　Thank you





Class Name: HowEasy

Method Name: pointVal

Parameters: String

Returns: int



TopCoder has decided to automate the process of assigning problem difficulty

levels to problems.　TopCoder developers have concluded that problem difficulty

is related only to the Average Word Length of Words in the problem statement:



If the Average Word Length is less than or equal to 3,　the problem is a 250

point problem.

If the Average Word Length is equal to 4 or 5, the problem is a 500 point

problem.

If the Average Word Length is greater than or equal to 6, the problem is a 1000

point problem.



Definitions:

Token- a set of characters bound on either side by spaces, the beginning of

the input String parameter or the end of the input String parameter.

Word- a Token that contains only letters (a-z or A-Z) and may end with a

single period. A Word must have at lea