Master Data Structure Interviews

Phantom Code covers hash maps, sets, binary trees, BSTs, heaps, priority queues, graphs, tries, segment trees, disjoint sets, linked lists, and custom data structure design problems.

Phantom Code explains why a specific data structure is the best choice for the problem, comparing alternatives and their time complexity for different operations like insert, delete, and search.

Yes. Phantom Code provides clean, well-commented implementations of complex data structures like LRU Cache, LFU Cache, and other custom designs commonly asked in FAANG interviews.

Yes. For every data structure used in the solution, Phantom Code provides time complexity for all operations (insert, delete, search, update) with clear explanations of the underlying mechanics.

Phantom Code helps design custom data structures by selecting the right building blocks, implementing clean interfaces, and explaining design decisions — exactly how interviewers evaluate your approach.