DSA18 Jun 20263 min read
A Sliding Window Checklist You Can Reuse
How to identify fixed and variable windows, maintain the right state, and avoid the off-by-one bugs that make this pattern feel slippery.
sliding-windowstringsarrays
DSA Foundations
Patterns, templates, and problem walkthroughs that build speed without turning preparation into brute-force repetition.
Core patterns distilled into reusable checklists
Dry-run habits that reduce silly interview mistakes
Progressions from easy recognition to hard variants
Articles in this track
2 articles seeded for launch. Keep adding markdown files to grow the library.
DSA10 Jun 20264 min read
Mastering the Two Pointers Pattern
A clean decision tree for spotting two-pointer problems quickly and avoiding the most common interview slips.
arrayspointersinterviews