Master the Algorithms.
Ace the Interview.

Stop memorizing solutions. Learn the flow from Brute to Better to Optimal with rich, step-by-step implementations.

best-time-to-buy-and-sell-stock.js

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function maxProfitOptimal(prices) {
  let minPrice = Infinity;
  let maxProfit = 0;

  for (let i = 0; i < prices.length; i++) {
    minPrice = Math.min(minPrice, prices[i]);
    maxProfit = Math.max(maxProfit, prices[i] - minPrice);
  }
  return maxProfit;
}

Why AlgoFlows?

The Complete Interview Toolkit

Everything you need to go from struggling with nested loops to architecting planet-scale systems.

Progression Learning Protocol

Don't just jump to the final optimal answer. Learn the Brute Force, understand its limits, optimize to Better, and finally master the Optimal solution. Build true intuition.

Curated Topics

Categorized index covering FAANG favorites: DP, Two Pointers, Graphs, Trees, and Matrix manipulations.

Clean Code

Production-ready code snippets with heavy commenting, edge-case handling, and complexity analysis (Time & Space).

Deep Dive System Design

Go beyond coding. Learn how to draw architectures, handle high traffic, shard databases, and design systems like Twitter, Netflix, and Uber.

Choose Your Path

Select a module to dive into the comprehensive curriculum and begin your preparation.

Algorithms

Master foundational coding patterns. Access an extensive collection of problems categorized by arrays, dynamic programming, two pointers, and more.

Start Coding

System Design

Transition to senior engineering roles. Learn how to architect scalable, resilient, and distributed systems for real-world high-traffic applications.

Start Designing

Loved by Engineers

Join the community of developers acing their interviews.

"The 'Brute -> Better -> Optimal' flow completely changed how I approach DP problems. I stopped memorizing and started understanding."

Alex Chen

Software Engineer II

"Finally, a system design resource that doesn't feel like reading a textbook. The visual explanations of Load Balancers were perfect."

Sarah Jenkins

Senior Backend Dev

"Having all the code in JS/Python directly in the browser with beautiful syntax highlighting makes quick reviews before interviews a breeze."

David Kim

Fullstack Developer

Built by the Community,
for the Community

AlgoFlows is completely open-source. Help us build the ultimate interview preparation platform. Whether it's adding a new algorithm, fixing a bug, or improving the design—your contributions are highly welcome!

Star & Contribute on GitHub

Master the Algorithms. Ace the Interview.