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# interviewprep

Sharing interview experiences, questions, and preparation strategies for security roles.

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Stop Guessing: The 'Expand-Contract' Framework for Sliding Window

Stop Guessing: The 'Expand-Contract' Framework for Sliding Window

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4 min read
Interview Coder: Controversy, Detection Risks, and Ethical Alternatives

Interview Coder: Controversy, Detection Risks, and Ethical Alternatives

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7 min read
Why Do I Keep Forgetting LeetCode Solutions After Solving Them? (And How to Fix It)

Why Do I Keep Forgetting LeetCode Solutions After Solving Them? (And How to Fix It)

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9 min read
Union-Find Path Compression: A Visual Dry Run

Union-Find Path Compression: A Visual Dry Run

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4 min read
Mastering Sliding Window: The 'Expand-Contract' Guide for Beginners

Mastering Sliding Window: The 'Expand-Contract' Guide for Beginners

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10 min read
Google Coding Interview: The Complete 2026 Guide (From an Ex-Googler)

Google Coding Interview: The Complete 2026 Guide (From an Ex-Googler)

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4 min read
Why You Keep Getting 'Index Out of Bounds' (And How to Stop It Forever)

Why You Keep Getting 'Index Out of Bounds' (And How to Stop It Forever)

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7 min read
How to Debug LeetCode Solutions Effectively: Common Mistakes and Systematic Approaches

How to Debug LeetCode Solutions Effectively: Common Mistakes and Systematic Approaches

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11 min read
Level Order BFS: How to Keep Depth Boundaries from Blurring

Level Order BFS: How to Keep Depth Boundaries from Blurring

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4 min read
Overlapping Subproblems: Spot Them Before You Write DP

Overlapping Subproblems: Spot Them Before You Write DP

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5 min read
How Long Does It Take to Prepare for Coding Interviews? (Realistic Timelines)

How Long Does It Take to Prepare for Coding Interviews? (Realistic Timelines)

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10 min read
Leidos LeetCode: The 'Operational Realism' Interview Guide

Leidos LeetCode: The 'Operational Realism' Interview Guide

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7 min read
Sliding Window Intuition for Absolute Beginners: A Step-by-Step Guide

Sliding Window Intuition for Absolute Beginners: A Step-by-Step Guide

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3 min read
System Design for Beginners: A Practical Practice Path

System Design for Beginners: A Practical Practice Path

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5 min read
BFS or DFS? How to Choose in 30 Seconds During Interviews

BFS or DFS? How to Choose in 30 Seconds During Interviews

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4 min read
How to Get Better at LeetCode: 10 Tips That Actually Work (2026)

How to Get Better at LeetCode: 10 Tips That Actually Work (2026)

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4 min read
Sliding Window Template for Strings: A Visual Walkthrough

Sliding Window Template for Strings: A Visual Walkthrough

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4 min read
Is GeeksforGeeks Worth It? What They Don't Tell You (2026)

Is GeeksforGeeks Worth It? What They Don't Tell You (2026)

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4 min read
Prefix Sum Patterns for LeetCode Beginners

Prefix Sum Patterns for LeetCode Beginners

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4 min read
How to Create Algorithm Templates for LeetCode Without Memorizing Solutions

How to Create Algorithm Templates for LeetCode Without Memorizing Solutions

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7 min read
Stop Memorizing BFS: Trace the Queue Like a Human Compiler

Stop Memorizing BFS: Trace the Queue Like a Human Compiler

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4 min read
Stop Getting TLEs: The 10-Second Complexity Check Every Dev Needs

Stop Getting TLEs: The 10-Second Complexity Check Every Dev Needs

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4 min read
LeetCode vs AlgoMonster: Which Is Better for Interview Prep in 2025?

LeetCode vs AlgoMonster: Which Is Better for Interview Prep in 2025?

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6 min read
Heapify Down: How to Trace Each Swap Without Getting Lost

Heapify Down: How to Trace Each Swap Without Getting Lost

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4 min read
Brute Force to Two Pointers: Stop Getting Lost in the Transition

Brute Force to Two Pointers: Stop Getting Lost in the Transition

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4 min read
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