MA Manohari Jayachandran C# Generics and Collections: The Interview Topic That Comes Up Every Single Time Of all the C# topics that come up in technical interviews, generics and collections show up the most consistently — across junior, mid, and…
TCH LIF PR PRASIT Data Structure Explained: A Practical Guide to the Most Important Types Think of a data structure as the tool your code uses to keep track of information — storing, finding, updating, and searching through it…
TCH RU Rucha Sinkar Longest Consecutive Sequence — Why sorting is a trap Assume an array [100, 4, 200, 3, 1, 2]
AY Ayoub Taouam Understanding equals() and hashCode() in Java: Why Your HashMap Might Be Misbehaving Why your Java HashMap or HashSet may not work as expected and how equals() and hashCode() can silently break your collections.
AI SCI YA Yair Morgenstern Hashsets to Bitsets— optimizing hexagonal coordinate retrieval 1:1 functions from inputs to numbers 0..n, allow converting hashsets to bitsets, for 10x performance. Here’s how to do it with hex math!
PR Pratham Karia Why You Must Override hashCode() When Overriding equals() in Java? When you override equals() in Java to compare objects logically (by data, not memory address), you must also override hashCode(). Failing…