The Software Development Engineer (SDE) interview process at Meta typically begins with a recruiter screening call to review your background and explain the role, followed by one or two technical phone interviews focused on data structures and algorithms. Candidates who pass move to a virtual onsite (interview loop) consisting of multiple rounds, usually including two coding interviews, one system or product design round (for mid-level and above roles), and a behavioral interview assessing teamwork, communication, and alignment with company values. Interviewers evaluate problem-solving ability, coding efficiency, system thinking, and collaboration skills. After the loop, a hiring committee reviews feedback before making a final decision and extending an offer if selected.

Given an array of integers nums and an integer k, return the length of the longest contiguous subarray whose sum equals k.