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Set Membership Test: Sets generally have a lookup time complexity of O(1) on average due to hash table implementation, allowing for constant-time complexity. This makes sets very efficient for checking the presence of an element.
List Membership Test: Lists perform a sequential search with a time complexity of O(n), where the time increases linearly with the list size, making it much slower for membership checks, especially as the list grows larger.

Introduction

Welcome to our exploration of Kotlin Sets! Sets in Kotlin are collections that hold only distinct values, ensuring that no element appears more than once. They are ideal when uniqueness is a requirement within your data collection.

In this lesson, you'll gain knowledge of creating and working with sets in Kotlin. This includes understanding both immutable and mutable sets and how sets improve performance in specific operations. Let's get started!

Creating and Manipulating Sets

In Kotlin, you can create sets using setOf() for immutable sets and mutableSetOf() for sets that can change.

Kotlin provides various functions to manipulate these sets. Particularly for MutableSet, functions such as add(), remove(), and contains() are available:

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