Interview prep, explained clearly
Patterns, process, and practice notes for engineers preparing for coding interviews.
Why Progressive Hints Beat Solutions (And How to Use Them)
Getting the answer doesn't teach you anything. Here's how progressive hints keep you in the productive struggle zone — where real learning happens.
learninghintsspaced repetitiondeliberate practiceRead articleClarify, Plan, Code, Reflect: The Interview Process That Actually Works
Most candidates jump straight to coding. The best candidates don't. Here's the four-step process top engineers use to ace coding interviews consistently.
interview processcoding interviewsmethodologytipsRead article14 Coding Interview Patterns You Need to Master
Stop memorizing LeetCode problems. Learn these 14 foundational patterns and you'll be able to solve problems you've never seen before.
patternsleetcodeinterview prepalgorithmsRead articleHow to Build a 90-Day Interview Prep Plan
Most interview prep fails because it is unstructured. Here is a practical 90-day system that balances patterns, mock interviews, review loops, and measurable progress.
interview prepstudy planleetcodecareerRead articleRecursion vs Iteration: Interview Tradeoffs That Matter
Both recursion and iteration can solve the same problems. The interview win comes from choosing intentionally, explaining tradeoffs, and avoiding hidden runtime pitfalls.
recursioniterationinterview prepdata structuresRead articleGreedy Algorithms: When Local Works Global
Greedy solutions can feel like guesswork. This guide shows how to recognize the right problems, justify correctness, and avoid common traps in interviews.
greedyalgorithmsinterview prepproofsRead articlePrefix Sum Patterns You Should Know
Prefix sums look basic, but they quietly power some of the highest-frequency interview wins. Learn when to use them, when not to, and how to avoid common traps.
prefix sumarraysinterview prepalgorithmsRead articleYear-End Interview Prep Reset: A Better Plan for Q1 Offers
If your prep felt inconsistent this year, don't brute force December. Use a structured reset that turns scattered practice into interview-ready momentum for Q1.
interview prepplanningleetcodecareer growthRead articleHeaps and Priority Queues: Interview Cheat Sheet That Actually Helps
Heaps are simple once you know when to use min-heap, max-heap, and fixed-size top-K patterns. This cheat sheet focuses on decision speed under interview pressure.
heapspriority queuetop kinterview prepRead articleInterval Problems: Pattern Recognition Over Memorization
Interval questions look different on the surface, but most reduce to a few repeatable patterns. Learn the decision rules that help you choose quickly and correctly.
intervalsgreedysortinginterview prepRead articleBacktracking with Pruning: Mental Models That Save Time
Backtracking is exponential by default. Learn the pruning mental models that cut useless branches and make 'find all solutions' problems interview-manageable.
backtrackingpruningsearchinterview prepRead articleLinked Lists You Can Actually Reason About
Stop memorizing pointer tricks. Build a small set of invariants that make linked list problems predictable and much easier to debug.
linked listpointersinterview prepalgorithmsRead articleMock Interview Self-Review Playbook
Most candidates run mocks but never extract lessons from them. Use this structured self-review playbook to turn every mock into measurable interview improvement.
mock interviewsself reviewinterview prepdeliberate practiceRead articleTime-Space Trade-Offs, Explained Like Systems Design
Interview algorithm choices are miniature architecture decisions. Learn a systems-style framework for balancing latency, memory, simplicity, and risk under constraints.
time complexityspace complexitytrade-offsinterview prepRead articleDynamic Programming as State Design
Stop treating DP as memorized formulas. Learn to design state, transitions, and base cases so new DP problems become tractable under interview pressure.
dynamic programmingstate designpatternsinterview prepRead articleGraphs for Interviews Without Fear
Graph questions feel chaotic until you reduce them to traversal goals and state. Use this practical framework to choose BFS, DFS, or topological tools with confidence.
graphsbfsdfsinterview prepRead articleBinary Search Beyond Sorted Arrays
Binary search is really about shrinking monotonic search space. Learn the interview framework for answer-space search, boundaries, and proofs of correctness.
binary searchpatternsinterview prepproblem solvingRead articleHash Maps for Interviews: A Pattern-First Guide That Actually Sticks
Hash maps are not just a data structure, they are a pattern detector. Learn when to reach for them, how to explain trade-offs, and how to avoid common interview mistakes.
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A calm, repeatable debugging system for coding interviews so you can recover from bugs quickly and show strong engineering judgment under stress.
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A practical communication framework for coding interviews: how to narrate thinking, handle uncertainty, and build interviewer trust in real time.
communicationinterview prepbehavioralcoding interviewsRead articleSliding Window Pattern Interview Guide
Learn how to spot sliding-window questions, maintain the right invariants, and explain your logic clearly in coding interviews.
sliding windowleetcodepatternsinterview prepRead articleTwo Pointers Pattern Interview Guide
A practical playbook for identifying and solving two-pointers questions with confidence, including invariants, edge cases, and interview communication scripts.
two pointersleetcodeinterview preppatternsRead articleBig-O Notation for Real Interviews
How to discuss Big-O like an experienced engineer: practical intuition, trade-off language, and a repeatable framework interviewers trust.
big-oalgorithmsinterview prepcommunicationRead articleHow to Start LeetCode Without Burning Out
A practical six-week system to build LeetCode consistency, avoid burnout, and turn random grinding into interview-ready pattern skills.
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