Learn Big O Algorithms in Python

Interactive – learn faster by coding, not watching lectures

Free tier – no-strings-attached 7-day free trial

Learn Python – one of the most top paid, in-demand and employable languages

Why should you learn Big O Algorithms?

big o algorithms course

Big O is the most important topic in algorithms, and will make your algorithms faster, leaner, and better.

Whether you need to brush up on your big O skills for a coding interview or to take on a project at work, or need to test your own algorithms for efficiency or complexity, our big O course teaches you everything you need to know about big O, as you code in Python and complete our coding lessons and multiple-choice questions.

Stack Overflow’s 2020 report on Python:

$120,000 average salary 

Growing in popularity — Most used language for AI and machine learning

Loved by coders — 3rd most loved language

We love Python because it is:

Simple & quick to learn — Python reads like English and lets you get to the meat of the logic faster

Modern — Python 3 is the latest version and it’s what we teach in all our courses

Attractive to employers — Python is still on the rise year over year with more and more companies on board

Still not sold on Python? Check out all 9 reasons why you should learn Python this year.

Learn Big O Algorithms with Qvault

60+ lessons

Over 60 lessons covering everything from the basics of big O notation, complexity classes, to each different type of sorting, and non-deterministic polynomial time.

And once you’ve completed it, you earn a free certificate proving your skills.

Learn Big O Algorithms by coding

Lectures are comfortable but don’t get you the interactive coding skills you need.

Each of our lessons features interactive coding challenges or multiple-choice questions.

Learn at your pace

Browser-based. No downloads. No deadlines. Complete autonomy.

Become a computer scientist, at your own pace.

A Big O Algorithms Course with Certificates

Every course you complete in the Qvault app comes with a downloadable certificate you can share online or attach to a CV. You can even link to your portfolio page so any recruiters can see every course you complete all in one place, like a computer science trophy cabinet.

Why people think we’ve got the best Big O Algorithms course

jacob jenne testimonial

Jacob Jenne

CTO at Nuvi – Utah, USA

As an employer, it’s important for me to find engineers who understand the core principles of computer science. I need employees who have been exposed to all kinds of data structures and algorithms. Qvault offers these courses in a way that makes it easy to learn and advance.

What you’ll learn in our online Big O Algorithms course

  • Math, exponents, and logarithms
  • Learning the major big O categories including O(n^2), O(log(n)), O(2^n)
  • Bubble, merge, insertion, and quick sorting
  • Why different with big O classes matter
  • Prime factorization
  • Quick sorting, fixing quick sorting, and why and when it is used with big O algorithms
  • Polynomial-time, P
  • Non-deterministic polynomial time, NP
  • The Traveling Salesman Problem (TSP)
  • NP-complete, and NP-hard
  • Does P = NP?

What you’ll learn in our online Big O Algorithms course

Chapter 1: Big O

  • What is an algorithm, logarithm, big O notation, using factorials
  • Using 0(n), 0(log(n)), and other big O categories
  • Big O complexity

Chapter 2: Sorting

  • Bubble sort with big O
  • Merge sort with big O
  • Insertion sort with big O
  • Quick sort with big O

Chapter 3: NP

  • Polynomial time, P
  • Reduction to P
  • Non-deterministic polynomial time, NP
  • The Traveling Salesman Problem, TSP
  • Does NP = P?
  • NP-complete, and NP-hard
  • Prime factorization

Frequently Asked Questions

Interested in upgrading to get full access to our Big O Algorithms course, but unsure what that entails?

What’s the difference between Basic and Pro?

A Basic account is, well, basic. You can demo Pro features on the first 6 exercises of each course (such as our Big O Algorithms course). But after that, if you’re on a Basic plan, you’ll only be able to read the course material and play in the code sandbox. You won’t get access to feedback on your code know if you got the right answers.

Qvault Pro has everything in Basic, plus all the advanced tools, content, solutions, and certifications that you need to make your learning faster.

A Pro account lets you practice much more efficiently by getting instant verification of all your code solutions. If you get stuck, you can use the “cheat” feature to take a look at the solution and quickly see what’s holding you up.

Additionally, one of the biggest benefits our Pro subscribers get is access to free certificates of completion when they finish a course. Showing off your work to employers is a quick way to get that high-paying tech job

For a full list of the differences between Pro and Basic, view our Pricing page.

Do you offer any discounts?

Our top priority is improving the courses, the app, and your experience — so your feedback is super valuable to us.

If you’re happy to help us keep improving our courses to be the best they can be, we’re currently offering a 25% discount to anyone who completes this feedback form. When you’re finished with the survey you’ll be given a coupon code!

Do I need to know how to code in Python or about Big O Notation and Algorithms before signing up?

Our Big O Algorithms course was designed for users to complete lessons coding in Python.

The course starts from the basics of what an algorithm is, how logarithms work, as well as explaining the basics of big O notation. So even beginners should be able to complete the course and move on to the more challenging aspects once they understand these basics.

If you want to learn how to code in Python first, we recommend you first take our Python Fundamentals course.

Why should I upgrade to Qvault Pro?

I built Qvault based on the lessons I’ve been learning as a technical hiring manager, so everything we do here is designed to take you from your current level, and get you an eventual high-paying programming job. If you’re ready to accelerate your learning and apply your skills to real-world scenarios, then Qvault Pro is for you.

Aside from the direct benefits, if you like what we’re building here at Qvault, your support helps us improve the platform.

How easy is it to cancel my subscription if I don’t like it?

We do our best to be transparent about pricing, and never want anyone keeping a subscription they don’t use. You can cancel your subscription any time from your settings page and you won’t be billed again.

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Ready to start your journey and learn Big O Algorithms?

Now it’s time for you to start your programming journey, increase your salary, and build the next stage of your career.

Try the first six lessons of our Algorithms course completely free, and if you’re enjoying it, get full access to all of our courses with a 7-day free trial. Cancel at any time.