From: James Edward Gray II <james@...>
Date: 2006-05-08T06:27:38+09:00
Subject: Re: [QUIZ] Bracket Packing (#78) (2 solutions)

On May 7, 2006, at 1:36 PM, Eric I. wrote:

> Here is my solution to the first option of the quiz, which is  
> simply to detect if there is a problem.  It makes use of the  
> allowed assumption that only one packaging character would be  
> omitted in incorrect input.  So the underlying algorithm is to make  
> sure there are an even number of combined "("s and ")"s (and the  
> same goes for the other two types of packaging).  The String#count  
> method does much of the heavy lifting.
>
>
> ["()", "{}", "[]"].each { |symbol_pair| exit(1) if 0 != ARGV 
> [0].count(symbol_pair) % 2 }
> puts ARGV[0]

Just thinking out loud here, but how does this fair with inputs like:

")B(" or "B()"

?

James Edward Gray II