Posted inCoding Interview Walkthroughs
Microsoft Software Engineer Interview Guide 2026
How to prepare for the Microsoft SDE interview in 2026: rounds, coding topics, design expectations, and a 4-week study plan.
Posted inCoding Interview Walkthroughs
Backtracking Interview Guide: Patterns for 2026
Master the backtracking pattern for coding interviews: the choose-explore-undo template, Java examples, pruning tips, and a 10-day practice plan.
Posted inCoding Interview Walkthroughs
Two Pointers Pattern for Coding Interviews: 2026 Guide
Master the two pointers pattern for coding interviews: variants, Java examples, common mistakes, and a two-week practice plan to solve array problems in O(n).
Graph BFS vs DFS for Coding Interviews: 2026
Master BFS and DFS for coding interviews with reusable templates and worked solutions for Number of Islands, Rotting Oranges and Course Schedule.
Prefix Sum Pattern for Coding Interviews: 2026 Guide
Master the prefix sum pattern for coding interviews: range queries, prefix sum + hash map, difference arrays, Java code and a 7-day practice plan.
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Bit Manipulation for Coding Interviews: 2026 Guide
Master essential bit manipulation tricks for coding interviews. Learn XOR patterns, bit shifting, and solve common problems with clear Java examples.
Topological Sort Pattern for Coding Interviews 2026
Master the Topological Sort pattern: spot the hidden DAG, memorize the Kahn’s algorithm Java template, and get cycle detection free. 4 classic problems.
Merge Intervals Pattern for Coding Interviews 2026
Master the Merge Intervals pattern: the sorting insight, a clean Java template, and the 5 classic problems that cover almost every interval question.
Posted inBlog
Union-Find Pattern for Coding Interviews: 2026 Guide
Master the Union-Find (Disjoint Set Union) pattern for coding interviews. Learn path compression, union by rank, Java implementation, and solve top problems like connected components, redundant connection, and accounts merge.
Posted inCoding Interview Walkthroughs
Trie Pattern for Coding Interviews in 2026
Master the Trie data structure for coding interviews in 2026 - implementation, key LeetCode problems, and when to use it over a hash map.