Discussion
· Jul 28, 2023

Code Golf: Parenthesis

Our previous code golf ended with an overwhelming win, so now it's time for another one.
Parenthesis Hell is a Lisp-like esoteric programming language(esolang).
As a Lisp-like language, the code consists only of nested matched pairs of opened and closed parenthesis.
Your task is to write a method that receives a string of parenthesis and returns 1 if the order of the parenthesis is valid. For example, the string of parenthesis (())() is valid because it contains a matched pair of opened and closed parenthesis at each position. The string ()((()))) is not valid because it contains one unmatched parenthesis.

Input

"(()()())" 

Output

1

Note

Rules

  1. The signature of the contest entry MUST be:

    Class codeGolf.ParenthesisHell
    {
    
    ClassMethod IsValid(s As %String) As %Boolean
    {
        // Your solution here
    }
    
    }
    
  2. It is forbidden to modify class/signature, including but not limited to:
    • Adding inheritance
    • Setting default argument values
    • Adding class elements (Parameters, Methods, Includes, etc).
  3. It is forbidden to refer to non-system code from your entry. For example, this is not a valid entry:

    ClassMethod Build(f As %Integer)
    {
      W ##class(myPackage.myClass).test(a)
    }
    
  4. The use of $ZWPACK and $ZWBPACK is also discouraged.

  5. You can use this test case:

    Class codeGolf.unittests.ParenthesisHell Extends %UnitTest.TestCase
    {
    
    Method TestValid()
    {
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid("()"), $$$YES)
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid("(()())"), $$$YES)
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid("(((())))"), $$$YES)
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid("()(())((()))(())()"), $$$YES)
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid("(]{)"), $$$YES)
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid("(()()(()()(()()()()((()()(()(()((()((()()()((()((()()()((()((((()()(()()()()()()(((()(((()((()((((()(((()()(()()((()((()()()((()()(()()()()(()()()()(()()()()(()(())))))))))))))))))))))))))))))))))))))))))))))))))"), $$$YES)
    }
    
    Method TestInValid()
    {
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid("(]"), $$$NO)
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid("()(()(()))(()()"), $$$NO)
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid(")("), $$$NO)
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid("()()("), $$$NO)
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid("((())"), $$$NO)
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid("())(()"), $$$NO)
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid(")()"), $$$NO)
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid(")"), $$$NO)
        Do $$$AssertEquals(##class(codeGolf.ParenthesisHell).IsValid("(()()(()()(()()()()((()()(()(()((()((()()()((()((()()()((()((((()()(()()()()()()(((()(((()((()((((()(((()()(()()((()((()()()((()()(()()()()(()()()()(()()()()(()(()))))))))))))))))))))))))))))))))))))))))))))))))"), $$$NO)
    }
    }
    
Discussion (37)3
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OK, I start with 47 chars... unfortunately, I have to add 20 chars more for that (stupid) extra requirement of ignoring characters like {, [, <, etc. therefore end up with 67 chars

ClassMethod IsHalfValid(x)
{
1	s z=x,x=$replace(x,"()","") g 1:x'=z q x=""
}

ClassMethod IsFullValid(x)
{
1	s z=x,x=$replace($zstrip(x,"*e",,"()"),"()","") g 1:x'=z q x=""
}

Speed was'n asked...

Thanks for the comment. I tested only on the provided data. The second option requires improvement.

 
size = 72
 
size = 69