A video call with two interviewers present: the hiring manager and probably a senior team engineer.

Since the hiring manager is part of the process, the decision of proceeding to the next stages mostly depends on whether the manager likes you or not; interview performance is of secondary importance.

Write a BFS on a "sorted" binary tree, which prints node values in level order. What is a BFS? Write a BFS for a generic graph.

Create a memory management system that allocates fixed-size blocks in a constrained environment with limited memory. Avoid using malloc, free, new, or delete. Instead, rely on a 'memory' function for both managing memory and allocating space for clients.