Workbook Guide

New Clean Structure

Your workbook has been reorganized for clarity and progression. Here's the new structure:

Main Entry Points

1. START HERE → PROBLEMS-INDEX.md

• Complete map of all 268 problems

• Organized by difficulty level

• Quick reference table for each level

2. By Difficulty Level

• BEGINNER (38 problems) → phase1-beginner.md

  • Foundation fundamentals

  • Variables, operators, control flow, simple loops

  • Recommended: 1-2 weeks for beginners

• INTERMEDIATE (70 problems) → phase2-intermediate.md

  • Collections, OOP basics, patterns

  • Arrays, Lists, Dictionaries, Classes

  • Recommended: 2-3 weeks

• ADVANCED (67 problems) → phase3-advanced.md

  • Generics, LINQ, design patterns

  • Advanced data structures, delegates, events

  • Recommended: 3-4 weeks

• EXPERT (21 problems)+ Interview Tracks → phase4-expert.md

  • Concurrency, async/await, system design

  • Complex algorithms

  • Recommended: 2-3 weeks

3. Interview Preparation

• interview-track-A-strings.md - 12 String Algorithm Problems

• interview-track-B-arrays.md - 13 Array Algorithm Problems

Total: 25 interview-focused problems for job preparation

What's New

✓ Removed: AI fluff, motivational text, redundant descriptions ✓ Added: Clean problem index with difficulty breakdown ✓ Organized: All 268 problems sorted by difficulty level ✓ Simplified: Ultra-lean format (title, concepts, requirements, code)

What Was Changed

The following files have been REORGANIZED and are now superseded by the phase files:

• Original problem files fragmented across multiple documents

• These are now consolidated into organized phase files

• Original files kept for reference if needed

How to Get Started

1. Open PROBLEMS-INDEX.md

2. Choose your starting difficulty level

3. Open the corresponding phase markdown file

4. Work through problems in order

All problem content is preserved. The reorganization simply:

• Groups problems by difficulty

• Removes AI-generated fluff

• Creates a clear progression path

• Makes the workbook easier to navigate

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Workbook reorganized: March 2026 Total: 268 problems across 4 difficulty levels + interview tracks