Implementing a stack from scratch seems straightforward, but many developers fall into common traps. From confusing array and linked list trade-offs to mishandling capacity and thread safety, this post covers the pitfalls you need to avoid.
Recursion in tree traversal is a staple of coding interviews and real-world development, but even experienced developers fall into these five traps. Learn how to spot and fix them with concrete examples.
Hash tables and binary search trees are both fundamental data structures for storing key-value pairs. This article compares their performance, ordering guarantees, memory usage, and collision strategies to help you decide when to use each.
Learn how to implement a trie for autocomplete from scratch. This guide walks through trie structure, insertion, search, and prefix traversal with working Python code.
A trie is an efficient data structure for autocomplete. This guide walks through implementing a trie from scratch, including insertion, search, and prefix traversal, with code examples in Python.