Solutions of some problems from HackerRank made specifically for beginners and who are in the intermediate level

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Problem-Solving 💻

Title	Solutions	Video	Difficulty
Encryption	Solution		Medium
The Time in Words	Solution		Medium
Sherlock and the Valid String	Solution		Medium
Sherlock and Anagrams	Solution		Medium
Common Child	Solution		Medium
Max Min	Solution		Medium
Compare the Triplets	Solution		Easy
A Very Big Sum	Solution		Easy
Diagonal Difference	Solution		Easy
Plus Minus	Solution		Easy
Staircase	Solution		Easy
Mini-Max Sum	Solution		Easy
Birthday Cake Candles	Solution		Easy
Time Conversion	Solution		Easy
Grading Students	Solution		Easy
Apple and Orange	Solution		Easy
Number Line Jumps	Solution		Easy
Between Two Sets	Solution		Easy
Breaking the Records	Solution		Easy
Subarray Division	Solution		Easy
Divisible Sum Pairs	Solution		Easy
Migratory Birds	Solution		Easy
Bill Division	Solution		Easy
Sales by Match	Solution		Easy
Drawing Book	Solution		Easy
Counting Valleys	Solution		Easy
Electronics Shop	Solution		Easy
Cats and a Mouse	Solution		Easy
Picking Numbers	Solution		Easy
The Hurdle Race	Solution		Easy
Designer PDF Viewer	Solution		Easy
Angry Professor	Solution		Easy
Beautiful Days at the Movies	Solution		Easy
Viral Advertising	Solution		Easy
Save the Prisoner!	Solution		Easy
Circular Array Rotation	Solution		Easy
Sequence Equation	Solution		Easy
Find Digits	Solution		Easy
Sherlock and Squares	Solution		Easy
Cut the sticks	Solution		Easy
Jumping on the Clouds	Solution		Easy
Equalize the Array	Solution		Easy
ACM ICPC Team	Solution		Easy
Modified Kaprekar Numbers	Solution		Easy
Minimum Distances	Solution		Easy
Halloween Sale	Solution		Easy
Chocolate Feast	Solution		Easy
Service Lane	Solution		Easy
Flatland Space Stations	Solution		Easy
Fair Rations	Solution		Easy
Cavity Map	Solution		Easy
Super Reduced String	Solution		Easy
Intro to Tutorial Challenges	Solution		Easy
CamelCase	Solution		Easy
Strong Password	Solution		Easy
Correctness and the Loop Invariant	Solution		Easy
Caesar Cipher	Solution		Easy
Mars Exploration	Solution		Easy
HackerRank in a String!	Solution		Easy
Pangrams	Solution		Easy
Weighted Uniform Strings	Solution		Easy
Funny String	Solution		Easy
Gemstones	Solution		Easy
Beautiful Binary String	Solution		Easy
Closest Numbers	Solution		Easy
Find the Median	Solution		Easy
Palindrome Index	Solution		Easy
Making Anagrams	Solution		Easy
Game of Thrones - I	Solution		Easy
Two Strings	Solution		Easy
Ice Cream Parlor	Solution		Easy
Missing Numbers	Solution		Easy
Sherlock and Array	Solution		Easy
Minimum Absolute Difference in an Array	Solution		Easy
Marc's Cakewalk	Solution		Easy
Grid Challenge	Solution		Easy
Luck Balance	Solution		Easy
Beautiful Pairs	Solution		Easy
Priyanka and Toys	Solution		Easy
Mark and Toys	Solution		Easy
Jim and the Orders	Solution		Easy
Permuting Two Arrays	Solution		Easy
Lonely Integer	Solution		Easy
Sum vs XOR	Solution		Easy
Flipping bits	Solution		Easy
XOR Strings	Solution		Easy
Smart Number	Solution		Easy

Python 🐍

Title	Solutions		Difficulty
Write a function	Solution		Medium
The Minion Game	Solution		Medium
Find Angle MBC	Solution		Medium
No Idea!	Solution		Medium
Say "Hello, World!" With Python	Solution		Easy
Python If-Else	Solution		Easy
Arithmetic Operators	Solution		Easy
Python: Division	Solution		Easy
Loops	Solution		Easy
Print Function	Solution		Easy
Find the Runner-Up Score!	Solution		Easy
Finding the percentage	Solution		Easy
Lists	Solution		Easy
Tuples	Solution		Easy
sWAP cASE	Solution		Easy
String Split and Join	Solution		Easy
What's Your Name?	Solution		Easy
Mutations	Solution		Easy
Find a string	Solution		Easy
String Validators	Solution		Easy
Text Wrap	Solution		Easy
Capitalize!	Solution		Easy
itertools.product()	Solution		Easy
collections.Counter()	Solution		Easy
itertools.permutations()	Solution		Easy
Introduction to Sets	Solution		Easy
Calendar Module	Solution		Easy
Exceptions	Solution		Easy
Collections.namedtuple()	Solution		Easy
Collections.OrderedDict()	Solution		Easy
Symmetric Difference	Solution		Easy
itertools.combinations()	Solution		Easy
Incorrect Regex	Solution		Easy
Set .add()	Solution		Easy
itertools.combinations_with_replacement()	Solution		Easy
Set .discard(), .remove() & .pop()	Solution		Easy
Collections.deque()	Solution		Easy
Set .union() Operation	Solution		Easy
Set .intersection() Operation	Solution		Easy
Power - Mod Power	Solution		Easy
Set .difference() Operation	Solution		Easy
Integers Come In All Sizes	Solution		Easy
Mean, Var, and Std	Solution		Easy
Dot and Cross	Solution		Easy
Inner and Outer	Solution		Easy
Polynomials	Solution		Easy
Linear Algebra	Solution		Easy
Shape and Reshape	Solution		Easy
Transpose and Flatten	Solution		Easy
Concatenate	Solution		Easy
Zeros and Ones	Solution		Easy
Eye and Identity	Solution		Easy
Array Mathematics	Solution		Easy
Floor, Ceil and Rint	Solution		Easy
Sum and Prod	Solution		Easy
Min and Max	Solution		Easy
Set .symmetric_difference() Operation	Solution		Easy
Set Mutations	Solution		Easy
The Captain's Room	Solution		Easy
Check Subset	Solution		Easy
Check Strict Superset	Solution		Easy
Zipped!	Solution		Easy
Input()	Solution		Easy
Python Evaluation	Solution		Easy
Any or All	Solution		Easy
Detect Floating Point Number	Solution		Easy
Map and Lambda Function	Solution		Easy
Re.split()	Solution		Easy
Validating phone numbers	Solution		Easy
Arrays	Solution		Easy

Java ☕

Title	Solutions		Difficulty
Welcome to Java!	Solution		Easy
Java Stdin and Stdout I	Solution		Easy
Java If-Else	Solution		Easy
Java Stdin and Stdout II	Solution		Easy
Java Loops I	Solution		Easy
Java Loops II	Solution		Easy
Java Datatypes	Solution		Easy
Java End-of-file	Solution		Easy
Java Int to String	Solution		Easy
Java Date and Time	Solution		Easy
Java Strings Introduction	Solution		Easy
Java Substring	Solution		Easy
Java Substring Comparisons	Solution		Easy
Java String Reverse	Solution		Easy
Java Anagrams	Solution		Easy
Java String Tokens	Solution		Easy
Pattern Syntax Checker	Solution		Easy
Java Primality Test	Solution		Easy
Java BigInteger	Solution		Easy
Java 1D Array	Solution		Easy
Java Subarray	Solution		Easy
Java Inheritance I	Solution		Easy
Java Inheritance II	Solution		Easy
Java Abstract Class	Solution		Easy
Java Method Overriding	Solution		Easy
Java Method Overriding 2 (Super Keyword)	Solution		Easy
Java Instanceof keyword	Solution		Easy
Java Iterator	Solution		Easy
Java Varargs - Simple Additio	Solution		Easy

Author

Mohamed Metwalli - Software Engineer & Technical Writer
🌐 mohamedmetwalli.com · LinkedIn