Loopa, Mastering Data Structures & Algorithms

A pattern-first platform to learn Data Structures & Algorithms through practice, and visualization.

What You'll Get

  • Data Structures & Algorithms Explained Clearly
  • Step-by-Step editorials with How to Think, code, walkthroughs, and visualizations
  • Progress step by step with 100 curated Easy → Hard problems.
  • Videos, animations, and code visualizations that make concepts stick.
  • Real-world use cases & complexity analysis
  • Code directly in our integrated editor with real-time execution and feedback

20 Data Structures

  • Concise text explanation with examples.
  • Animated video to build intuition.
  • Visualization of state transitions and operations.
  • Code implementations in multiple languages.
  • Time & space complexity analysis.
  • Use cases spanning real-world systems.
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20 Algorithm

  • Clear text explanation with an illustrative example.
  • Animated video walkthrough for intuition.
  • Visualization of how states change step by step.
  • Code implementations in multiple languages.
  • Time & space complexity analysis.
  • Use cases across real life, computer science.
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100 Problems

  • Hand-picked, real-world inspired problems.
  • Mapped to the 20 Data Structures + 20 Algorithm Methods for direct application.
  • A natural difficulty curve (Easy → Medium) to steadily grow your skills.
  • Hints to guide you toward the right approach.
  • Train on key patterns that generalize across problems.
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Solutions

  • How to Think: approaching problems systematically.
  • Overview: short explanation of the concept.
  • Steps: implementation explained step by step.
  • Code Implementation: clean, well-commented, and interview-ready.
  • Complexity Analysis: time/space trade-offs and pitfalls.
  • Example Walkthrough: tabled traces to show state changes.
  • Visualization: animated execution that makes the logic click.

Price Plans

Full access to all 20 Data Structures & 20 Algorithm methods, and 100 Problems.

Full access to solutions for 100 problems with How to Think, code, and visualizations.

Access to integrated code editor: run, debug, and submit in real time.

Points & rewards: earn as you solve, redeem to extend subscription.

Reward

Points & Rewards

Earn points by solving problems or inviting friends, then redeem them for discounts on your subscription.

Refer & Earn

  • Win-Win: You collect points, your friend gets a 20% discount.
  • Refer 1 friend → 250 points (worth 1 month free)
  • Refer 2 friends → 500 points (worth 3 months free)
  • Refer 3 friends → 750 points (worth 12 months free)

Solve & Earn

  • Solve a problem → 2.5 points (≈ $0.076 each point)
  • Complete all 100 problems → 250 points (≈ $19, worth 1 month free subscription)