Dictionary Membership Check Bug

Access Time Complexity: Arrays vs Dictionaries

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

Out-of-Bounds Errors

Updating Array Elements

Converting Between Strings and Arrays

Time Complexity of Array Operations

What Is an Array

Array Declaration and Initialization

Array Indexing (Zero-Based)

Accessing Array Elements

Array Length and Bounds

Traversing an Array

Inserting into an Array

Deleting from an Array

Searching an Array (Linear Scan)

Contiguous Memory Layout of Arrays

Fixed-Size vs Resizable Arrays

Multidimensional Arrays

What Is a String

Strings as Character Sequences

String Indexing and Character Access

String Length

String Concatenation

Substrings and Slicing

String Immutability

Common String Operations

Comparing Strings for Equality

Iterating Over a String

Deleting Elements from an Array

Inserting Elements into an Array

Accessing and Updating Array Elements

Trying to Change a Character

Concatenating Strings

Measuring String Length

Getting a Character by Index

Removing the Last Element

Accessing the Last Element

Finding the Maximum Value

Converting a String to Uppercase

Checking If an Element Exists

Looping Over Characters

Extracting a Substring

Summing Array Elements

Splitting a String into Characters

Zero-Based Loop Start

Updating an Array Element

Looping Through an Array

Reading the Array Length

Accessing the First Array Element

Comparing Two Strings

Reversing an Array

Fixed-Size vs Dynamic Arrays

Array Indexing and Zero-Based Access

1D vs Multi-Dimensional Arrays

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

Updating an Element

Time Complexity of Array Operations

Contiguous Memory Layout

Inserting an Element

Advantages and Limitations of Arrays

String Concatenation

String Comparison

What is an Array

Fixed-Size vs Dynamic Arrays

Deleting an Element

Two-Dimensional Arrays (Matrices)

Common String Operations

What Is an Array

Common Use Cases for Arrays and Strings

Arrays and Strings Connection