Whatsapp Software Engineer interview experience

The prompt was centered on linked list work—things like merging two sorted lists and working through linked-list merge sort. After that, I moved into a couple of Skype interviews where I had to answer two coding questions each time and talk through my background as I worked.

In my Skype rounds, the coding prompts spanned a bunch of formats: converting a sorted linked list into a BST, fixing a linked list that had a loop, a regular-expression-style question for IP, and an array-based implementation of a queue. What really stood out was how broad the coverage felt, like they were probing both