Algorithms

⏱ 9 min read Graph Traversal Interview Patterns (2025) Graph problems are among the most common in FAANG interviews — they appear as network […] Read article

⏱ 8 min read Shortest Path Algorithm Interview Patterns (2025) Shortest path problems are fundamental in graph interviews. Knowing when to apply BFS, Dijkstra, Read article

⏱ 7 min read Low-Level Design: Tic-Tac-Toe Game Tic-Tac-Toe is a common LLD warm-up question that tests your ability to model game state, validate Read article

⏱ 8 min read Low-Level Design: Movie Ticket Booking System The Movie Ticket Booking system (like BookMyShow or Fandango) is a popular LLD interview Read article

⏱ 6 min read Low-Level Design: Snake and Ladder Game Snake and Ladder (also called Chutes and Ladders) is a popular LLD interview problem Read article

⏱ 8 min read Low-Level Design: ATM Machine The ATM Machine is a classic LLD problem that tests state machine design, OOP modeling, and Read article

⏱ 8 min read Segment Tree Interview Patterns (2025) Segment Trees are powerful data structures for range query problems — they answer range sum, Read article

⏱ 7 min read Low-Level Design: Hotel Booking System (OOP) The Hotel Booking System is a rich LLD problem that combines real-world business rules Read article

⏱ 11 min read Low-Level Design: Chess Game Designing a chess game is a classic LLD interview question that tests your ability to model Read article

⏱ 8 min read String Manipulation Interview Patterns: Complete Guide (2025) String problems are ubiquitous in coding interviews — from anagram detection to complex Read article

⏱ 8 min read Monotonic Stack Patterns: Complete Interview Guide Monotonic stacks solve a specific family of problems related to “nearest greater/smaller element” queries Read article

⏱ 4 min read Design Patterns in Python for Coding Interviews (2025) Python-specific design pattern implementations come up in senior coding rounds at Stripe, Read article

⏱ 4 min read Trie Interview Patterns: Autocomplete, Word Search, and Prefix Problems (2025) Tries (prefix trees) are the go-to data structure for string Read article

⏱ 5 min read 2D Dynamic Programming Interview Patterns (2025) Two-dimensional DP problems are common at Google, Meta, Amazon, and Microsoft. They involve grids, Read article