Data Structures for Coding Interviews in C#

This course helps you solve real C# coding interview questions by polishing your data structures and algorithm-based problem-solving skills.

Beginner

219 Lessons

35h

Certificate of Completion

This course helps you solve real C# coding interview questions by polishing your data structures and algorithm-based problem-solving skills.

AI-POWERED

Mock Interview

Explanations

AI-POWERED

Mock Interview

Explanations

This course includes

145 Playgrounds

61 Challenges

24 Quizzes

This course includes

145 Playgrounds

61 Challenges

24 Quizzes

Course Overview

Data structures are amongst the very fundamentals of computer science. They are often a core decision in developing efficient programs. Consequently, they are also largely categorized as a vital benchmark of computer science knowledge when it comes to industry interviews. This course contains a detailed review of all the common data structures, and it also provides implementation level details in C# to help readers become well equipped with different data structures that they can leverage to write better ...Show More

TAKEAWAY SKILLS

Programming Language

Prepare For Interview

Data Structures

Time Complexity

Course Content

Introduction to Complexity Measures

In this chapter, you will learn how to solve algorithm efficiency challenges using time and space complexity measures.

Comparing Algorithms

Example 1: Measuring Time Complexity of a Single Loop Algorithm

Example 2: Time Complexity of an Algorithm With Nested Loops

Introduction to Asymptotic Analysis and Big O

Other Common Asymptotic Notations and Why Big O Trumps Them

Useful Formulae

Common Complexity Scenarios

Challenge 1: Big (O) of Nested Loop with Addition

Solution Review: Big (O) of Nested Loop with Addition

Challenge 2: Big (O) of Nested Loop with Subtraction

Solution Review: Big (O) of Nested Loop with Subtraction

Challenge 3: Big (O) of Nested Loop with Multiplication

Solution Review: Big (O) of Nested Loop with Multiplication

Challenge 4: Nested Loop with Multiplication (Basic)

Solution Review: Nested Loop with Multiplication (Basic)

Challenge 5: Nested Loop with Multiplication (Intermediate)

Solution Review: Nested Loop with Multiplication (Intermediate)

Challenge 6: Nested Loop with Multiplication (Advanced)

Solution Review: Nested Loop with Multiplication (Advanced)

Challenge 7: Nested Loop with Multiplication (Pro)

Solution Review: Nested Loop with Multiplication (Pro)

Complexity Quiz: Test your understanding of Complexity

Introduction to Arrays

This chapter covers how to use various array implementations to solve sorting, searching, and rearranging problems in C#.

What is an Array?

Multidimensional Arrays

Challenge 1: Remove Even Integers From an Array

Solution Review: Remove Even Integers From an Array

Challenge 2: Merge Two Sorted Arrays

Solution Review: Merge Two Sorted Arrays

Challenge 3: Find Two Numbers that Add Up to Given Value

Solution Review: Find Two Numbers that Add Up to the Given Value

Challenge 4: Array of Products of all Elements

Solution Review: Array of Products of All Elements

Challenge 5: Finding Minimum Value in an Array

Solution Review: Finding Minimum Value in an Array

Challenge 6: Finding the First Unique Integer in an Array

Solution Review: Finding the First Unique Integer in an Array

Challenge 7: Finding the Second Maximum Value in an Array

Solution Review: Finding the Second Maximum Value in an Array

Challenge 8: Right Rotate an Array by One

Solution Review: Right Rotate an Array by One

Challenge 9: Rearrange Positive & Negative Values

Solution Review : Rearrange Positive & Negative Values

Challenge 10: Rearrange Sorted Array in Max/Min Form

Solution Review: Rearrange Sorted Array in Max/Min Form

Challenge 11: Maximum Sum Subarray

Solution Review: Maximum Sum Subarray

Arrays Quiz: Test Your Understanding of Arrays

Introduction to Linked Lists

In this chapter, you will discover how to solve problems with linked lists, including operations, comparisons, and efficient implementations.

Singly Linked Lists (SLL)

Basic Linked List Operations

Singly Linked List Insertion

Challenge 1: Insertion at Tail

Solution Review: Insertion at Tail

Challenge 2: Search in a Singly Linked List

Solution Review: Search in a Singly Linked List

Deletion in a Singly Linked List

Challenge 3: Deletion by Value

Solution Review: Deletion by Value

Linked Lists vs. Arrays

Challenge 4: Find the Length of a Linked List

Solution Review: Finding the Length of a Linked List

Challenge 5: Reverse a Linked List

Solution Review: Reverse a Linked List

Challenge 6: Detect Loop in a Linked List

Solution Review: Detect a Loop in a Linked List

Challenge 7: Find Middle Node of Linked List

Solution Review: Find Middle Node of a Linked List

Challenge 8: Remove Duplicates from Linked List

Solution Review: Remove Duplicates From a Linked List

Challenge 9: Union and Intersection of Linked Lists

Solution Review: Union and Intersection of Linked Lists

Challenge 10: Return the Nth Node From End

Solution Review: Return the Nth Node From The End

Doubly Linked Lists (DLL)

Singly Linked Lists vs. Doubly Linked Lists

Linked Lists Quiz: Test Your Understanding of Linked Lists

Introduction to Stack/Queues

This chapter explores how to solve challenges using stacks and queues, focusing on their definitions, implementations, and problem-solving techniques.

What is a Stack?

Stack (Implementation)

What is a Queue?

Queue (Implementation)

Challenge 1: Generate Binary Numbers From 1 to N Using Queue

Solution Review: Generate Binary Numbers From 1 to N Using Queue

Challenge 2: Implement Two Stacks Using One Array

Solution Review: Implement Two Stacks Using One Array

Challenge 3: Reversing First "k" Elements of Queue

Solution Review: Reversing First "k" Elements of Queue

Challenge 4: Implement a Queue Using Stacks

Solution Review: Implement a Queue Using Stacks

Challenge 5: Sort Values in a Stack

Solution Review: Sort Values in Stack

Challenge 6: Evaluate Postfix Expression Using a Stack

Solution Review: Evaluate Postfix Expression Using a Stack

Challenge 7: Next Greater Element Using a Stack

Solution Review: Next Greater Element Using a Stack

Challenge 8: Check Balanced Parentheses Using Stack

Solution Review: Check Balanced Parentheses Using Stack

Challenge 9: min() Function Using a Stack

Solution Review: min() Function Using a Stack

Stack/Queue Quiz: Test Your Understanding of Stack/Queue

Introduction to Graphs

This chapter explores how to solve graph traversal and operation challenges, including implementing key algorithms and understanding graph complexities.

What is a Graph?

Types of Graphs

Representation of Graphs

Graph Implementation

Complexities of Graph Operations

What is a Bipartite Graph?

Graph Traversal Algorithms

Challenge 1: Implement Breadth First Search

Solution Review: Implement Breadth First Search

Challenge 2: Implement Depth First Search

Solution Review: Implement Depth First Search

Challenge 3: Detect Cycle in Graph

Solution Review: Detect Cycle in Graph

Challenge 4: Find a "Mother Vertex" in a Graph

Solution Review: Find a "Mother Vertex" in a Graph

Challenge 5: Count the Number of Edges in an Undirected Graph

Solution Review: Count the Number of Edges in an Undirected Graph

Challenge 6: Check if a Path Exists Between Two Vertices

Solution Review: Check if a Path Exists Between Two Vertices

Challenge 7: Check if an Undirected Graph is Tree or Not

Solution Review: Check if an Undirected Graph is a Tree or Not

Challenge 8: Find the Shortest Path Between Two Vertices

Solution Review: Find the Shortest Path Between Two Vertices

Challenge 9: Remove Edge

Solution Review: Remove Edge

Graph Quiz: Test your Understanding of Graphs

Introduction to Trees

38 Lessons

This chapter covers how to use tree data structures to solve problems related to binary trees, balancing methods, and various tree operations.

Trie

14 Lessons

This chapter teaches you how to solve word storage and sorting challenges using the Trie data structure, including its operations and practical applications.

Introduction to Heap

12 Lessons

This chapter explores how to solve problems involving finding smallest and largest elements in arrays using max heaps and min heaps.

Introduction to Hashing

29 Lessons

In this chapter, you will learn how to solve efficient data handling challenges using hash tables, including collision resolution techniques.

10.

Summary of Data Structures

2 Lessons

The chapter highlights the distinctions between linear and non-linear data structures, emphasizing their operational complexities and encouraging further exploration for interview preparation.

Course Author

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Evan Dunbar

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Souvik Kundu

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Kenan Eyvazov

DevOps Engineer

Souvik Kundu

Front-end Developer

Eric Downs

Musician/Entrepeneur

Anthony Walker

@_webarchitect_

Evan Dunbar

ML Engineer

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