HackerRank

Solution to HackerRank problems

Python

Category	Difficulty	Problem	Solution
Introduction	Easy	Say "Hello, World!" With Python	01. Say Hello, World! With Python.py
Introduction	Easy	Python If-Else	02. Python If-Else.py
Introduction	Easy	Arithmetic Operators	03. Arithmetic Operators.py
Introduction	Easy	Python: Division	04. Python Division.py
Introduction	Easy	Loops	05. Loops.py
Introduction	Medium	Write a function	06. Write a function.py
Introduction	Easy	Print Function	07. Print Function.py
Basic Data Types	Easy	List Comprehensions	01. List Comprehensions.py
Basic Data Types	Easy	Find the Runner-Up Score!	02. Find the Runner-Up Score!.py
Basic Data Types	Easy	Nested Lists	03. Nested Lists.py
Basic Data Types	Easy	Finding the percentage	04. Finding the percentage.py
Basic Data Types	Easy	Lists	05. Lists.py
Basic Data Types	Easy	Tuples	06. Tuples.py
Strings	Easy	sWAP cASE	01. sWAP cASE.py
Strings	Easy	String Split and Join	02. String Split and Join.py
Strings	Easy	What's Your Name?	03. What's Your Name.py
Strings	Easy	Mutations	04. Mutations.py
Strings	Easy	Find a string	05. Find a string.py
Strings	Easy	String Validators	06. String Validators.py
Strings	Easy	Text Alignment	07. Text Alignment.py
Strings	Easy	Text Wrap	08. Text Wrap.py
Strings	Easy	Designer Door Mat	09. Designer Door Mat.py
Strings	Easy	String Formatting	10. String Formatting.py
Strings	Easy	Alphabet Rangoli	11. Alphabet Rangoli.py
Strings	Easy	Capitalize!	12. Capitalize!.py
Strings	Medium	The Minion Game	13. The Minion Game.py
Strings	Medium	Merge the Tools!	14. Merge the Tools!.py
Sets	Easy	Introduction to Sets	01. Introduction to Sets.py
Sets	Meidum	No Idea!	02. No Idea!.py
Sets	Easy	Symmetric Difference	03. Symmetric Difference.py
Sets	Easy	Set .add()	04. Set .add().py
Sets	Easy	Set .discard(), .remove() & .pop()	05. Set .discard(), .remove() & .pop().py
Sets	Easy	Set .union() Operation	06. Set .union() Operation.py
Sets	Easy	Set .intersection() Operation	07. Set .intersection() Operation.py
Sets	Easy	Set .difference() Operation	08. Set .difference() Operation.py
Sets	Easy	Set .symmetric_difference() Operation	09. Set .symmetric_difference() Operation.py
Sets	Easy	Set Mutations	10. Set Mutations.py
Sets	Easy	The Captain's Room	11. The Captain's Room.py
Sets	Easy	Check Subset	12. Check Subset.py
Sets	Easy	Check Strict Superset	13. Check Strict Superset.py
Math	Easy	Polar Coordinates	01. Polar Coordinates.py
Math	Medium	Find Angle MBC	02. Find Angle MBC.py
Math	Medium	Triangle Quest 2	03. Triangle Quest 2.py
Math	Easy	Mod Divmod	04. Mod Divmod.py
Math	Easy	Power - Mod Power	05. Power - Mod Power.py
Math	Easy	Integers Come In All Sizes	06. Integers Come In All Sizes.py
Math	Medium	Triangle Quest	07. Triangle Quest.py
Itertools	Easy	itertools.product()	01. itertools.product().py
Itertools	Easy	itertools.permutations()	02. itertools.permutations().py
Itertools	Easy	itertools.combinations()	03. itertools.combinations().py
Itertools	Easy	itertools.combinations_with_replacement()	04. itertools.combinations_with_replacement().py
Itertools	Medium	Compress the String!	05. Compress the String!.py
Itertools	Medium	Iterables and Iterators	06. Iterables and Iterators.py
Itertools	Hard	Maximize It!	07. Maximize It!.py
Collections	Easy	collections.Counter()	01. collections.Counter().py
Collections	Easy	DefaultDict Tutorial	02. DefaultDict Tutorial.py
Collections	Easy	Collections.namedtuple()	03. Collections.namedtuple().py
Collections	Easy	Collections.OrderedDict()	04. Collections.OrderedDict().py
Collections	Medium	Word Order	05. Word Order.py
Collections	Easy	Collections.deque()	06. Collections.deque().py
Collections	Medium	Company Logo	07. Company Logo.py
Collections	Medium	Piling Up!	08. Piling Up!.py
Date and Time	Easy	Calendar Module	01. Calendar Module.py
Date and Time	Medium	Time Delta	02. Time Delta.py
Errors and Exceptions	Easy	Exceptions	01. Exceptions.py
Errors and Exceptions	Easy	Incorrect Regex	02. Incorrect Regex.py
Classes	Medium	Dealing with Complex Numbers	01. Dealing with Complex Numbers.py
Classes	Easy	Find the Torsional Angle	02. Find the Torsional Angle.py
Built-Ins	Easy	Zipped!	01. Zipped!.py
Built-Ins	Easy	Input()	02. Input().py
Built-Ins	Easy	Python Evaluation	03. Python Evaluation.py
Built-Ins	Medium	Athlete Sort	04. Athlete Sort.py
Built-Ins	Easy	Any or All	05. Any or All.py
Built-Ins	Medium	ginortS	06. ginortS.py
Python Functionals	Easy	Map and Lambda Function	01. Map and Lambda Function.py
Python Functionals	Medium	Validating Email Addresses With a Filter	02. Validating Email Addresses With a Filter.py
Python Functionals	Medium	Reduce Function	03. Reduce Function.py
Regex and Parsing	Easy	Detect Floating Point Number	01. Detect Floating Point Number.py
Regex and Parsing	Easy	Re.split()	02. Re.split().py
Regex and Parsing	Easy	Group(), Groups() & Groupdict()	03. Group(), Groups() & Groupdict().py
Regex and Parsing	Easy	Re.findall() & Re.finditer()	04. Re.findall() & Re.finditer().py
Regex and Parsing	Easy	Re.start() & Re.end()	05. Re.start() & Re.end().py
Regex and Parsing	Medium	Regex Substitution	06. Regex Substitution.py
Regex and Parsing	Easy	Validating Roman Numerals	07. Validating Roman Numerals.py
Regex and Parsing	Easy	Validating phone numbers	08. Validating phone numbers.py
Regex and Parsing	Easy	Validating and Parsing Email Addresses	09. Validating and Parsing Email Addresses.py
Regex and Parsing	Easy	Hex Color Code	10. Hex Color Code.py
Regex and Parsing	Easy	HTML Parser - Part 1	11. HTML Parser - Part 1.py
Regex and Parsing	Easy	HTML Parser - Part 2	12. HTML Parser - Part 2.py
Regex and Parsing	Easy	Detect HTML Tags, Attributes and Attribute Values	13. Detect HTML Tags, Attributes and Attribute Values.py
Regex and Parsing	Easy	Validating UID	14. Validating UID.py
Regex and Parsing	Medium	Validating Credit Card Numbers	15. Validating Credit Card Numbers.py
Regex and Parsing	Hard	Validating Postal Codes	16. Validating Postal Codes.py
Regex and Parsing	Hard	Matrix Script	17. Matrix Script.py
XML	Easy	Find the Score	01. Find the Score.py
XML	Easy	Find the Maximum Depth	02. Find the Maximum Depth.py
Closures and Decorators	Easy	Standardize Mobile Number Using Decorators	01. Standardize Mobile Number Using Decorators.py
Closures and Decorators	Easy	Name Directory	02. Name Directory.py
Numpy	Easy	Arrays	01. Arrays.py
Numpy	Easy	Shape and Reshape	02. Shape and Reshape.py
Numpy	Easy	Transpose and Flatten	03. Transpose and Flatten.py
Numpy	Easy	Concatenate	04. Concatenate.py
Numpy	Easy	Zeros and Ones	05. Zeros and Ones.py
Numpy	Easy	Eye and Identity	06. Eye and Identity.py
Numpy	Easy	Array Mathematics	07. Array Mathematics.py
Numpy	Easy	Floor, Ceil and Rint	08. Floor, Ceil and Rint.py
Numpy	Easy	Sum and Prod	09. Sum and Prod.py
Numpy	Easy	Min and Max	10. Min and Max.py
Numpy	Easy	Mean, Var, and Std	11. Mean, Var, and Std.py
Numpy	Easy	Dot and Cross	12. Dot and Cross.py
Numpy	Easy	Inner and Outer	13. Inner and Outer.py
Numpy	Easy	Polynomials	14. Polynomials.py
Numpy	Easy	Linear Algebra	15. Linear Algebra.py
Debugging	Medium	Words Score	01. Words Score.py
Debugging	Medium	Default Arguments	02. Default Arguments.py