ALGOCADEMY

Master Coding Questions with Detailed Solutions

Unlock hundreds of curated coding questions with step-by-step solutions to enhance your problem-solving skills and ace technical interviews.

340+ step-by-step lessons 11 programming languages Free to start, no card needed
SEE HOW THE LEARNING HAPPENS.Inside AlgoCademy

REAL LESSONS. ONE STEP AT A TIME.

A little guidance.
A lot of thinking.

This is Two Sum in the Python course, as you see it in the app. Each step is a line or two of the solution, checked by the lesson’s tests before the next one appears.

Try the free lessons
AlgoCademy · Two Sum · Python
The lesson page: on the left the Two Sum problem and step 1, “Declare a hash table named indexOfValue”; on the right the editor, with the step’s number on line 3.

AlgoCademy students have landed roles at

Google, Amazon, Meta, Netflix, and UberIndividual student outcomes; your path will be your own.

WHAT YOU GET.

Struggling with Tough Coding Questions?

Ace your coding interviews by mastering a curated collection of coding questions with detailed solutions. Our platform offers in-depth video walkthroughs, an interactive code editor, and comprehensive explanations covering algorithms and data structures. We’ve assembled everything we wished we had during interview prep into one powerful resource – trusted by hundreds of students at top tech companies.

Efficient Study Plan

Our study plan guides you through a progressive series of coding questions with detailed solutions, ensuring steady improvement in your problem-solving abilities.

Video Explanations

Each coding question comes with a comprehensive video walkthrough, breaking down the problem-solving approach and implementation details to boost your understanding.

Interactive Code Editor

Practice solving coding questions directly in our interactive editor with real-time feedback, syntax highlighting, and auto-completion to refine your coding skills.

300+ Curated Questions

Access a diverse collection of coding questions covering key algorithms and data structures – each paired with a detailed solution to guide you through every step of the process.

Multi-Language Support

Solutions are provided in multiple programming languages including Python, Java, C++, and JavaScript, so you can master problem-solving in your preferred language.

Progress Tracking

Monitor your improvement with detailed statistics, completion rates, and performance metrics as you work through our coding questions.

IS IT RIGHT FOR YOU?

Master Coding Questions at Your Own Pace

At AlgoCademy, we empower you with a vast library of coding questions paired with detailed solutions – all in one place. Forget spending endless hours searching through scattered resources. Our platform offers a structured study plan, engaging video walkthroughs, and interactive exercises designed to prepare you for the toughest technical interviews.

Is AlgoCademy right for you? Simply put, we’re for you if...

  • You’re preparing for coding interviews but aren’t sure where to start or how to tackle complex questions.
  • You’ve spent countless hours trying to solve coding questions online, only to be frustrated by the lack of complete, detailed solutions.
  • Even if you can devise an approach, you’re unsure if your solution is optimal or well-structured.
  • You want to gain the speed and accuracy necessary for real interview coding challenges.
  • You feel overwhelmed by the myriad of interview prep materials and need a streamlined question bank with expert solutions.

THE MOMENT IT STARTS TO CLICK.

Real people.
New confidence.

From getting unstuck to taking the next career step. Here’s how students describe their experience.

Read more student stories
After going through all the lessons, I gained the necessary skills to perform well at my on-sites. I crushed even the DP problems, which were my biggest fear. And thanks to that I landed offers from Microsoft and Uber. Thank you AlgoCademy!
Cristina Radulescu Landed offers from Microsoft and Uber
AlgoCademy really helped me improve my problem solving skills and write incredibly clean code. I was worried it wouldn’t be done in time for my coding interviews, but the way the curriculum is structured made me progress very quickly. Thanks for your work!
Connor Holland Student story · Vanguard
Wow. I've been using AlgoCademy for a while and now I can finally solve coding questions on my own. This gave me the confidence I needed for my interviews, and guess what? I landed the offer at Samsung! You guys truly kick ass. High fives!
Ankit Kumar Landed an offer at Samsung
Hear Connor’s story His experience learning with AlgoCademy

HOW WE COMPARE.

What sets AlgoCademy apart?

Unlike our competitors, AlgoCademy offers the most comprehensive, high-quality interactive coding platform, allowing students to see, step-by-step, what’s going right (and wrong) in their code, focused on the questions we know you’ll get asked in technical interviews. We’ll teach you how to write clean code using video instructions and interactive validators that check for quality.

FeatureAlgoCademyLeetCode / HackerRankCodecademyAlgoExpert
Optimized for Coding Interviews✓ Yes✓ Yes– No✓ Yes
Performance Validation✓ Yes✓ Yes– No– No
Learn to write Clean Quality Code✓ Yes– No– No– No
Step-by-Step Coding Tutorials✓ Yes– No✓ Yes– No
Video Content✓ Yes– No– No✓ Yes
Code Quality Validation✓ Yes– No– No– No
Optimized Problem Set for a fast learning curve✓ Yes– No– No✓ Yes

MEET THE PEOPLE BEHIND THE LESSONS.

Engineers who love
the “aha” moment.

Learn from instructors whose experience spans software engineering, competitive programming, and years of helping others learn.

Andrei Chiriac

SOFTWARE ENGINEER & INSTRUCTOR

Andrei Chiriac

Andrei has worked at Amazon and Keystone and earned a bronze medal at the Central European Olympiad in Informatics. Since 2015, he has coached students for programming competitions and coding interviews.

Mircea Dima

FOUNDER & SOFTWARE ENGINEER

Mircea Dima

Mircea has worked at Facebook, Adobe, Ubisoft, and startups. His engineering experience includes autocorrect, swipe typing, and music recommendations, alongside more than a decade of programming and interview coaching.

A FEW QUESTIONS BEFORE YOU START.

Frequently asked questions

So, you have questions? Let us try to answer those for you...
Ask the AlgoCademy team ↗

Will these coding questions with solutions truly prepare me for my coding interviews?

Yes! Our curated library of coding questions paired with detailed solutions is designed to cover every aspect of technical interviews. By working through our real-world problems, you’ll build the skills needed to excel under pressure. Many of our graduates report that our questions frequently appear in interviews at top companies.

I've never studied Computer Science. Is AlgoCademy beginner friendly?

Beginners are welcome! Even if you’re new to coding questions or have little background in computer science, our detailed solutions and guided explanations will help build your confidence, step by step. We designed AlgoCademy with self-taught programmers and beginners in mind – we meet you wherever you are and take you from there!

Is all of the content available immediately or is it drip fed?

No drip-feeding here! You get instant access to our entire library of coding questions with detailed solutions. Jump right in, and rest assured we update and add new material regularly.

What languages do I need to know?

You don't need to master a specific language to benefit from our lessons. Our detailed solutions are explained using pseudocode alongside examples in popular languages like Python, Java, C++, and JavaScript, ensuring every coder can follow along.

Why should I become a member today instead of waiting?

Every day you wait is another day without targeted practice on real coding questions with detailed solutions. Our comprehensive question bank, expert guidance, and supportive community together pave your way to a high-paying programming career. The sooner you start, the faster you advance. AlgoCademy is your launchpad – if you're ready to transform your coding skills, now is the time.

Is it really worth the money?

The average base salary of a software engineer is $110,464, according to Indeed, and top companies offer total compensation exceeding $250K. The confidence and skills you gain – solving real coding questions with expert solutions – can elevate your performance and negotiating power, making this investment well worth it.

Do you offer refunds?

We don't offer refunds under any circumstance. You can try out our free coding tutorials before deciding to subscribe.

What happens if I decide to cancel my membership?

Obviously, we’d love it if all of our members stuck around forever. We’ve worked with students long enough to know that sometimes paths diverge. If you decide to cancel, we make it as easy as possible – simply a couple of clicks, and you’re all set. We’ll miss you, but we’re proud to have been part of your journey.

ONE SMALL STEP TOWARD YOUR NEXT BIG THING.

Your next breakthrough
starts with a little practice.

Open a lesson. Try an idea. See what clicks.

Start learning for free 340+ lessons · 11 languages · Free to start