Big-O Notation For Coding Interviews and Beyond

The ultimate guide to Big-O notation for coding interviews, developed by FAANG engineers. Learn algorithm complexity in simple terms and get interview-ready in just a few hours.

Beginner

47 Lessons

10h

Certificate of Completion

The ultimate guide to Big-O notation for coding interviews, developed by FAANG engineers. Learn algorithm complexity in simple terms and get interview-ready in just a few hours.

AI-POWERED

Mock Interview

Explanations

AI-POWERED

Mock Interview

Explanations

This course includes

15 Playgrounds

12 Quizzes

This course includes

15 Playgrounds

12 Quizzes

Course Overview

This course is intended for professionals that lack formal education in computer science, and that are in search of a simple and practical guide to algorithmic complexity. The course explains the concepts in layman's terms, and teaches how to reason about the complexity of algorithms without requiring one to have an extensive mathematical skillset. This course can also be handy for revising complexity concepts or Big-O analysis before interviews. Finally, the content also scratches the surface of some advan...Show More

Course Content

Basics

Get familiar with the importance of time and space complexity, algorithm performance analysis, and instruction counting.

Introduction

Need for Speed

Analyzing Algorithms

Analyzing Algorithms Part II

Analyzing Algorithms Part III

Problem Set 1

Formal Analysis Tools

Get started with formal tools for analyzing algorithm performance, growth, and complexity.

Functions and Their Growth

Theta Notation

Big O and Big Omega Notations

Small omega and Small o Notations

Problem Set 2

Solution Set 2

Recursive

Examine recursion, binary search, permutations, dynamic programming, and algorithm efficiency analysis.

Recurrence

Recurrence Part II

Binary Search - Recursive Implementation

Permutations

Dynamic Programming

Top Down and Bottom Up Approaches

Problem Set 3

Solution Set 3

Data-Structures

Grasp the fundamentals of essential data structures and their complexities for efficient coding.

Priority Expiry Cache Problem

Amortized Analysis

Take a closer look at the cost efficiency of operations using amortized analysis methods.

Cost Over Sequence of Operations

Probabilistic Analysis

5 Lessons

Understand probability, random variables, probability distributions, expected value, and the Tinder Problem.

Complexity Theory

6 Lessons

Build on the importance of understanding complexity theory, P vs NP, and problem classes.

The End

2 Lessons

Grasp key Big-O complexities for algorithms and data structures to make informed decisions.

Course Author

Part of the Java Interview Prep Path

Ace the Java Coding Interview

Learn to tackle anything you might face in a coding interview in Java with absolute confidence.

7 Modules

Trusted by 1.4 million developers working at companies

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Evan Dunbar

ML Engineer

Carlos Matias La Borde

Software Developer

Souvik Kundu

Front-end Developer

Vinay Krishnaiah

Software Developer

Eric Downs

Musician/Entrepeneur

Kenan Eyvazov

DevOps Engineer

Souvik Kundu

Front-end Developer

Eric Downs

Musician/Entrepeneur

Anthony Walker

@_webarchitect_

Evan Dunbar

ML Engineer

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Instant Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

AI-Powered Mock Interviews

Put your skills to the test in a simulated interview setting. Receive personalized feedback based on your performance. Available in Premium & Premium Plus plans.

Adaptive Learning

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Explain with AI

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AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!