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).
Posted inCoding Interview Walkthroughs
Master the Two Pointers Pattern for Coding Interviews
Learn the two pointers technique with clear Java examples, when to use it, and the four interview patterns that turn O(n²) brute force into O(n).