Binary Search — the pattern behind O(log n)
When the answer space is sorted, halving it each step beats scanning everything.
Drill the patternsFree interview notes from the Intervues build. Markdown in, diagrams out.
Topics
Stop collecting questions. Learn the patterns.
DSA and system design notes built for the moment an interviewer says: “walk me through it.” Each topic is short, diagrammed, and written to be spoken out loud.
04 field notes04 mermaid diagrams0 live-copilot tricks
The old way
One more sheet. One more list. Still blank on the call.
Most prep teaches recognition. Interviews test explanation. That translation gap is where good candidates lose offers.
The Intervues way
Pattern → diagram → code → spoken explanation.
Every topic gives you the shape of the idea, the implementation, and the sentence you need when someone asks “why?”
Designing a URL Shortener
Hashing, base62 encoding, and the read-heavy path for a classic system design interview question.
Read the field noteDSA
Patterns, not question-hoarding.
Stop memorizing 400 answers. Learn the small moves that keep showing up.
Two Pointers
When the array is sorted, two indices walking toward each other often beat nested loops.
Drill the patternsSystem Design
Diagrams you can explain.
Cache, queues, limits, storage — drawn clearly enough to defend under pressure.
Designing a URL Shortener
Hashing, base62 encoding, and the read-heavy path for a classic system design interview question.
Walk the architectureDesign a Rate Limiter
Token bucket vs sliding window — the classic API gateway problem with a mermaid block you can sketch in 15 minutes.
Walk the architectureThis library grows with the product. Every new markdown file can carry prose, code, and mermaid architecture diagrams without custom page work.
Rehearse the room. Then walk in ready.
An interview is the first day of the job — practice before it counts.
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