Arrays, Hash Maps & Sets Trade-offs

Arrays vs Hash Maps vs Sets

Arrays Stored in Contiguous Memory

Iterating Over Characters in a String

Searching Within Strings and Arrays

Common String Operations

String Immutability

String Indexing and Accessing Characters

Character Encoding Basics: ASCII and Unicode

Strings as Sequences of Characters

What Is a String

Multi-Dimensional Arrays

Time Complexity of Array Operations

Traversing an Array with Loops

Deleting from an Array

Time Complexity of Array Operations

Converting Between Strings and Arrays

Updating Array Elements

Traversing an Array

Inserting into an Array

Searching an Array (Linear Scan)

Iterating Over a String

Comparing Strings for Equality

Common String Operations

String Immutability

Substrings and Slicing

String Concatenation

String Length

String Indexing and Character Access

Strings as Character Sequences

What Is a String

Multidimensional Arrays

Fixed-Size vs Resizable Arrays

Contiguous Memory Layout of Arrays

What Is an Array

Array Declaration and Initialization

Array Indexing (Zero-Based)

Accessing Array Elements

Array Length and Bounds

Out-of-Bounds Errors

Deleting Elements from an Array

Inserting Elements into an Array

Accessing and Updating Array Elements

Measuring String Length

Finding the Maximum Value

Converting a String to Uppercase

Accessing the First Array Element

Reading the Array Length

Looping Through an Array

Updating an Array Element

Zero-Based Loop Start

Accessing the Last Element

Removing the Last Element

Getting a Character by Index

Concatenating Strings

Trying to Change a Character

Extracting a Substring

Looping Over Characters

Splitting a String into Characters

Checking If an Element Exists

Summing Array Elements

Reversing an Array

Comparing Two Strings

Fixed-Size vs Dynamic Arrays

Array Indexing and Zero-Based Access

Contiguous Memory Layout

Inserting an Element

Advantages and Limitations of Arrays

String Concatenation

String Comparison

What is an Array

Fixed-Size vs Dynamic Arrays

1D vs Multi-Dimensional Arrays

Deleting an Element

Two-Dimensional Arrays (Matrices)

Common String Operations

Updating an Element

Time Complexity of Array Operations

Accessing an Element by Index

Traversing an Array

Finding Array Length

What is a String

Character Encoding Basics

String Length

Substrings

Iterating Through a String

Array Indexing (Zero-Based)

Linear Search in Array

Accessing Characters in a String

Strings as Arrays of Characters

String Immutability

Reversing a String or Array

What Is an Array

Common Use Cases for Arrays and Strings

Arrays and Strings Connection