Kotlin Playground

Kotlin Exercises, Data Structure, Algorithms, Design Patterns.

Language Features

Basics	Classes	Collections	Concurrency	Interfaces	Functions
Enums	Abstract Class	Lists	Coroutine: Builder and Jobs	Interface with code	Infix Function
Delegate Property	Data Class	Loop and Ranges	Coroutine: Scopes	Sealed Interface	Local Function
Lambdas	Properties	Maps	Coroutine: with Context		Operator Overloading
Number	Several Constructors	Sequences	Flows		Lambdas with Receivers
Scope Functions	Single Constructor	Sets	Shared Flow		Extension Function
String Template	Open Class		Channel		Extension Property
	Sealed Class		Callback Flow		Inline, Noinline, Crossline
	Visibility Modifier				Reified
	Type Alias				Contracts
	Custom Delegate				TailRec
	Class Delegation
	Objects in Kotlin
	Class With Statics

Algorithms

Arrays	Binary Tree	Graph	Strings	Greedy	Ordering
Non Constructible Change	Find Closest Value In BST	Depth First Search	Counting Valleys	Minimum Waiting Time	Insertion Sort
Sorted Squared Array	Branch Sums		Repeated String	Class Photos	Merge Sort
Tournament Winner	Node Depths			TandemBicycle
Transpose Matrix	Height Of A Binary Tree
Two Number Sum	Evaluate Expression Tree
Validate Subsequence	Postorder Traversal
Jumping On The Clouds	Preorder Traversal
Left Rotation

Resources

• 🌐 AlgoExpert.
• 🌐 HackerRank.
• 📖 Introduction to Algorithms.

Design Patterns

Creational	Structural	Behavioral
	Facade	Chain of Responsibility
	Decorator	Command
		Mediator
		State

Resources

• 📖 Design Patterns: Elements of Reusable Object-Oriented Software.
• 📖 Head First Design Patterns: Building Extensible & Maintainable Object-Oriented Software.
• 📖 Agile Software Development: Principles, Patterns, and Practices.
• 🎥 Design Pattern Video Tutorial - Derek Banas.

SOLID

Single Responsibility	Open Closed	Liskov's Substitution	Interface Segregation	Dependency Inversion
	OpenClosedInitial	LiskovRectangle
	OpenClosedViolation	LiskovViolationSquare
	OpenClosedConformity