PRACTICE STRUCTURE

Practice Folder Structure - Complete Guide

This document outlines the practice folder structure that mirrors notes/ and tracks completion status.

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Completed Structure

Core Files

• core-concepts.md ✓ - Practice hub aligned with notes/core-concepts.md
• error-handling-exercises.md ✓ - 35+ exercises
• logging-exercises.md ✓ - 30+ exercises
• testing-strategies-exercises.md ✓ - 40+ exercises
• solution-architecture-exercises.md ✓ - solution-level patterns
• system-architecture-exercises.md ✓ - system topology trade-offs
• sse-vs-websockets-exercises.md ✓ - streaming transport drills

Collections-And-Enumerables/

• index.md ✓ - 40+ LINQ & Collections exercises

SOLID/

• index.md ✓ - Overview of SOLID principles
• S-Single-Responsibility-Principle-Exercises.md ✓ - 25+ SRP exercises

Clean-Architecture/

• index.md ✓ - 35+ exercises

Automapper/

• index.md ✓ - 30+ exercises

FluentValidation/

• index.md ✓ - 30+ exercises

Memory-Allocation-Discipline/

• index.md ✓ - 35+ exercises (migrated from performance-memory.md)

DRY/

• index.md ✓ - 20 exercises

Use-Cases/massive-traffic/

• index.md ✓ - 10 foundational exercises

sub-notes/

• async-await-exercises.md ✓
• async-resilience.md ✓
• api-lifecycle.md ✓
• csharp-fundamentals.md ✓
• system-design.md ✓
• csharp-system-design-questions.md ✓
• data-layer.md ✓
• messaging-integration.md ✓
• trading-domain.md ✓
• behavioral-questions.md ✓
• code-assessment.md ✓
• linq-collections.md ✓ (legacy copy)
• performance-memory.md ✓ (legacy copy)
• struct vs class questions and answers.md ✓
• replace int without variable.md ✓

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To Be Created / Expanded

SOLID (Remaining Files)

• O-Open-Closed-Principle-Exercises.md - 25+ exercises
• L-Liskov-Substitution-Principle-Exercises.md - 25+ exercises
• I-Interface-Segregation-Principle-Exercises.md - 25+ exercises
• D-Dependency-Inversion-Principle-Exercises.md - 25+ exercises

Design-Patterns

• CQRS-Pattern-Exercises.md - 20+ exercises
• Expand existing pattern files to target counts (20+ each)

Collections-And-Enumerables (Additional Files)

• IEnumerable-Exercises.md - 20+ exercises
• ICollection-Exercises.md - 15+ exercises
• IList-Exercises.md - 15+ exercises
• IReadOnly-Exercises.md - 15+ exercises
• IQueryable-Exercises.md - 20+ exercises

Big-O-Complexity

• Expand existing O(1), O(n), O(n log n), O(n^2) files to 15+ exercises each
• Space-Complexity-Exercises.md - 20+ exercises

Use-Cases/massive-traffic (Topic Files)

• async-patterns-exercises.md
• backpressure-rate-limiting-exercises.md
• caching-strategies-exercises.md
• database-scaling-exercises.md
• message-queues-exercises.md
• resilience-patterns-exercises.md
• observability-exercises.md

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Migration Notes

Content Moved

• Root practice topic files moved into practice/sub-notes/ for alignment with notes/sub-notes/.
• advanced-topics/async-await-exercises.md moved to sub-notes/async-await-exercises.md.
• performance-memory.md content migrated into Memory-Allocation-Discipline/index.md.

Content Preserved

• questions.md and answers.md remain as all-in-one lists.
• Legacy copies retained in sub-notes/ to avoid losing any questions.

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Next Steps

1. Create remaining SOLID principle exercise files.
2. Expand Design Patterns and Big-O exercises to target counts.
3. Build out massive-traffic topic files.
4. Add Collections detail files.

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Estimated Total Files: 50+ Estimated Total Exercises: 1,000+