LeetCode For A Year?

I've reached a point where I'm comfortable with syntax and building applications, but when I see a blank LeetCode screen, I often freeze. I have solved only 11 problems so far. I realize now that there is a massive difference between writing code and solving problems.

Starting today, December 30, 2025, I am committing to a full year of LeetCode. My goal is to get better at problem-solving, maintain a perfect 365-day streak, and collect all 12 monthly badges.

My Strategy: The "Ghost Solve" Protocol

To stay consistent without falling into "Tutorial Hell," I am adopting the Ghost Solve Protocol.

The Philosophy: If I am stuck for more than 20 minutes, I am allowed to study a solution. However, the problem is not "solved" until I delete that code and rewrite it from a blank screen using my own variable names and logic flow. This ensures I'm building muscle memory, not just a high "Solved" count.

Why Python & C++?

• Python: To quickly prototype the logic and master the high-level "interview-style" approach.
• C++: To understand underlying efficiency. C++ forces me to be intentional about data types, memory, and pass-by-reference.

The 2026 Roadmap

Phase 1: The Foundation (Jan – Mar)

Focus: Mastering Big O and Linear Patterns.

• Daily Challenge: Complete every daily problem to earn the Jan, Feb, and March badges.
• Complexity Mastery: Calculate Time and Space complexity ($O(n), O(log n)$) for every solution.
• The "Easy" Grind: Focus on Arrays, Hashing, and Two Pointers.
• Target: 100+ "Easy" problems.

Phase 2: Identifying the Pattern (Apr – Jun)

Focus: Moving beyond brute force.

• Badge Quest: Maintain the streak for the Q2 badges.
• Sliding Window & Binary Search: Learn how to optimize nested loops into linear or logarithmic time.
• Stack/Queue Logic: Solve problems related to Undo/Redo operations and nested structures.
• C++ Focus: Master the STL (Vectors, Maps, Sets) to write cleaner, faster code.
• Target: 100+ "Medium" problems.

Phase 3: The Non-Linear Shift (Jul – Sep)

Focus: Recursion and Trees.

• Badge Quest: Complete the summer streak for July, August, and September badges.
• Thinking Recursively: Solve 30+ recursion-based problems. This is the hardest hurdle; I will not move on until it clicks.
• Trees & Graphs: Master BFS (Breadth-First Search) and DFS (Depth-First Search).
• Target: 100+ Medium/Hard problems.

Phase 4: Optimization & Polish (Oct – Dec)

Focus: Efficiency and Interviews.

• The Grand Slam: Collect the final 3 badges to complete the 12-month set.
• Dynamic Programming (DP): Tackle the "taboo" of algorithms. Start with basic memoization.
• Heap/Priority Queue: Learn how to handle "Top K" style problems efficiently.
• Target: 365-day streak and 300+ unique problems solved (600+ total solutions).

My Daily Workflow

To ensure I get my badges while still learning systematically, I will follow this 4-step daily routine:

1. The Anchor (Morning): Solve the LeetCode Daily Challenge in Python. If it's a topic I haven't learned yet, I use the Ghost Solve Protocol to understand the pattern.
2. The Skill (Afternoon): Work on a problem from my current Roadmap Phase (e.g., Two Pointers) in C++.
3. The Audit (Evening): Sync the day’s solutions to my GitHub "competitive-programming/leetcode" repo.
4. The Sunday Review: Re-solve the week's hardest Daily Challenge from a blank screen with zero hints.

Success Metrics

• The Trophy Case: 12 Monthly Badges earned.
• The Streak: A 365-day "Active" status on the LeetCode profile.
• Dual-Repo: A GitHub repo containing 365 folders, each with a solution.py and a solution.cpp.
• Mental Shift: Being able to read a problem and identify the required pattern within 5 minutes.

Conclusion

Being an intermediate programmer is a great start, but true engineering excellence requires deep problem-solving skills. By anchoring my learning to the Daily Challenges and using the Ghost Solve method, I am ensuring that my "clout" is backed by real competence.

The clock starts now.