Interview Corner
44 articles in this topic
Advanced DP Interview Questions and Answers: Four Worked Patterns
Work through four advanced dynamic programming patterns with exact states, transitions, reconstructions, proof hooks, and interview-ready explanations.
Updated 21 Oct 20266 min readInterview Corner
Algorithm Interview Questions and Answers: Cross-Concept DSA Problems
Practise cross-concept DSA questions with defensible answers, complete dry runs and the follow-ups that change which algorithm you should choose.
Updated 17 Oct 20266 min readInterview Corner
Backtracking Technique Interview Questions and Answers: Trace, Prune and Explain
Learn to explain backtracking through exact traces, safe pruning, clean state restoration, N-Queens constraints, complexity derivation and interview follow-ups.
Updated 12 Oct 20266 min readInterview Corner
Algorithm Analysis Interview Questions and Answers: Big-O, Loops and Recurrences
Learn how to answer algorithm analysis interviews by defining the input, counting real work, tracing recurrences, and defending time-space tradeoffs.
Updated 8 Oct 20266 min readInterview Corner
Placement Mock Analysis: One Error Ledger Across Every Test Round
Use one error ledger without flattening unlike round results. This worked example shows how to find the first wrong step, prioritise repairs and close errors only after fresh retests.
Updated 4 Oct 20265 min readInterview Corner
Internship to PPO: Build a Weekly Evidence Trail Before the Final Review
Use a weekly outcome ledger to make your internship work visible before the final review. This practice model shows how to record delivery, feedback, effect and handoff honestly.
Updated 28 Sep 20265 min readInterview Corner
DSA Mock Interview Rubric: A 100-Point Scorecard for Reasoning, Code and Communication
A practical six-part scorecard for running comparable DSA mocks, grading visible evidence and turning weak areas into the next week's practice.
Updated 25 Sep 20265 min readInterview Corner
Campus Recruitment Timeline: Stage by Stage from Pre-Placement Talk to Written Offer
Follow a campus drive without guessing. Build an evidence sheet, verify eligibility, plan each preparation window and check the written offer before responding.
Updated 24 Sep 20265 min readInterview Corner
Campus GD Debrief Rubric: Score Ideas, Clarity and Teamwork
Turn a recorded campus group discussion into useful evidence. This five-part rubric helps you justify each score and choose one behaviour to test in your next mock.
Updated 23 Sep 20265 min readInterview Corner
SQL Query Challenges: Window Functions, CTEs and Ranking with Worked Result Sets
Use one 11-row sales table to practise result grain, regional windows, ranking ties, top-N CTEs, running totals and a self-join alternative.
Updated 21 Sep 20266 min readInterview Corner
SQL Interview Questions: Joins, GROUP BY and Subqueries with Worked Result Sets
Practise seven SQL interview problems on one small dataset. Trace joins, groups, correlated subqueries, EXISTS and NULLs before checking each final result.
Updated 20 Sep 20265 min readInterview Corner
OOP Interview Questions: Trace Dispatch, State and Coupling
Trace one Wallet object through aliases and overridden calls, then use the same model to reason about invariants, substitutability and dependency design.
Updated 19 Sep 20266 min readInterview Corner