What's New?

January 2026

• Remove Colored Pieces IF Both Neighbors Are The Same Color

  New

  Greedy · Coding Question · 7 Jan 2026

  Eoin

• Read N Characters Given Read4 II Call Multiple Times

  New

  Queues · Coding Question · 7 Jan 2026

  Eoin

• Shortest Path TO Get All Keys

  New

  Graphs · Coding Question · 6 Jan 2026

  Eoin

• Polygon's Interview Process (2026)

  New

  Article · 6 Jan 2026

  Eoin

• Tripadvisor interview roadmap

  New

  Roadmap · 6 Jan 2026

  Eoin

• 4 new coding questions4 questions

  New

  CSS · Coding Question · 6 Jan 2026

  Eoin

• Batching Utility with Timeout

  New

  Low-Level Design · 6 Jan 2026

  Eoin

• Bookstore Word Counter

  New

  Low-Level Design · 6 Jan 2026

  Eoin

• Central Banking Ledger

  New

  Low-Level Design · 6 Jan 2026

  Eoin

• Caching Library with Pluggable Eviction Policies

  New

  Low-Level Design · 6 Jan 2026

  Eoin

• Postman's Interview Process (2026)

  New

  Article · 5 Jan 2026

  Eoin

• Tsmc interview roadmap

  New

  Roadmap · 5 Jan 2026

  Eoin

• Angular

  New

  Topic · 5 Jan 2026

  Eoin

• Cloud Storage

  New

  Low-Level Design · 5 Jan 2026

  Eoin

• Coffee Shop Decorator

  New

  Low-Level Design · 5 Jan 2026

  Eoin

• Connect Four

  New

  Low-Level Design · 5 Jan 2026

  Eoin

• Concurrent Money Transfer

  New

  Low-Level Design · 5 Jan 2026

  Eoin

• Comment Threading Model

  New

  Low-Level Design · 5 Jan 2026

  Eoin

• Postmates's Interview Process (2026)

  New

  Article · 2 Jan 2026

  Eoin

• Turo interview roadmap

  New

  Roadmap · 2 Jan 2026

  Eoin