HomeCoursesBig-O Notation For Coding Interviews and Beyond

Beginner

10h

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.

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Overview

Content

Reviews

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 advanced analysis topics to provide a more encompassing image of the complexity theory.

This course is intended for professionals that lack formal education in computer science, and that are in search of a simple and...Show More

Content

47 Lessons12 Quizzes

Basics

6 Lessons

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

6 Lessons

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

8 Lessons

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

9 Lessons

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

Priority Expiry Cache Problem

Amortized Analysis

5 Lessons

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.

Quantifying Chance & Randomness

Random Variables

Probability Distribution

Expected Value of a Random Variable

The Tinder Problem

Complexity Theory

6 Lessons

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

Why should I bother?

P and NP classes

Get Rich with Complexity

NP-Complete and NP-Hard

Between P and NP ?

Problem Set 6

The End

2 Lessons

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

Cheat Sheet

Epilogue

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Course Author:

C. H. Afzal

Developed by MAANG Engineers

Every Educative lesson is designed by a team of ex-MAANG software engineers and PhD computer science educators, and developed in consultation with developers and data scientists working at Meta, Google, and more. Our mission is to get you hands-on with the necessary skills to stay ahead in a constantly changing industry. No video, no fluff. Just interactive, project-based learning with personalized feedback that adapts to your goals and experience.

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Software Developer

Hands-on Learning Powered by AI

See how Educative uses AI to make your learning more immersive than ever before.

Personalized Interview Prep

Skip the LeetCode grind with a custom roadmap that adapts to your goals. Hands-on practice for Coding Interviews, System Design, and more.

Mock Interviews

Test your skills in a simulated interview setting. Receive personalized feedback based on your performance. Available for Coding Interviews, System Design, and more.

AI Prompt

Build prompt engineering skills. Practice implementing AI-informed solutions.

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.

Explain with AI

Select any text within any Educative course, and get an instant explanation — without ever leaving your browser.

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!

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