Bracket validator: Difference between revisions

Revision as of 06:44, 14 March 2018

This a problem set for you to work through ^[1]

This is a problem set. Some of these are easy, others are far more difficult. The purpose of these problems sets are:

to build your skill applying computational thinking to a problem
to assess your knowledge and skills of different programming practices

What is this problem set trying to do[edit]

You must apply your understanding of stacks and queues (and probably reading from a file) to solve this problem.

The Problem[edit]

You're working with an intern that keeps coming to you with JavaScript code that won't run because the braces, brackets, and parentheses are off. To save you both some time, you decide to write a braces/brackets/parentheses validator.^[2]

Let's say:

'(', '{', '[' are called "openers."
')', '}', ']' are called "closers."

Write an efficient function that tells us whether or not an input string's openers and closers are properly nested.

Examples:

"{ [ ] ( ) }" should return True
"{ [ ( ] ) }" should return False
"{ [ }" should return False

Unit Tests[edit]

User Input: Name: Bill
Expected output: Hello Bill

User Input: Name: TJ
Expected output: An administrator! Hello TJ

User Input: Name: 123
Expected output: Hello 123

Hacker edition[edit]

In the hacker version:

Your program should test for valid user input. The user input should be only allow for strings

THIS PART ISNT DONE YET

How you will be assessed[edit]

Your solution will be graded using the following axis:

Scope

To what extent does your code implement the features required by our specification?
To what extent is there evidence of effort?

Correctness

To what extent did your code meet specifications?
To what extent did your code meet unit tests?
To what extent is your code free of bugs?

Design

To what extent is your code written well (i.e. clearly, efficiently, elegantly, and/or logically)?
To what extent is your code eliminating repetition?
To what extent is your code using functions appropriately?

Style

To what extent is your code readable?
To what extent is your code commented?
To what extent are your variables well named?
To what extent do you adhere to style guide?

References[edit]

A possible solution[edit]

Click the expand link to see one possible solution, but NOT before you have tried and failed!

not yet!

[1] ttp://www.flaticon.com/

[2] ttps://www.interviewcake.com/question/python/bracket-validator?utm_source=weekly_email&utm_source=drip&utm_campaign=weekly_email&utm_campaign=(fixed)%20Interview%20Cake%20Weekly%20Problem%20%23182:%20Bracket%20Validator&utm_medium=email&utm_medium=email

[1]

[2]

@@ Line 18: / Line 18: @@
 Let's say:
-<syntaxhighlight lang="python" inline>'(', '{', '['</syntaxhighlight> are called "openers."
+* <syntaxhighlight lang="python" inline>'(', '{', '['</syntaxhighlight> are called "openers."
-')', '}', ']' are called "closers."
+* <syntaxhighlight lang="python" inline>')', '}', ']'</syntaxhighlight> are called "closers."
 Write an efficient function that tells us whether or not an input string's openers and closers are properly nested.