I interviewed at Meta (Menlo Park, CA) in Nov 2014
Interview
Did three rounds of interviews.
First round: design a system to detect homeworking copying, which means input two strings and a integer K, if there is a common substring of them have length larger than K, return true, else return false.
Second round: nearly all behavior questions. In the last five minutes, asked me to code up a linked list reverse function
Third round: build a dictionary trie and implement search function, mainly focusing on the OO designing pattern.
Recruiter call was pretty standard, first round was 2 Meta tagged LC mediums in 45 minutes. On-site was 2 coding sessions of 2 LC mediums, a system design interview and a behavioral interview with an engineering manager.
Interview questions [1]
Question 1
How do you answer if someone asks how long a deliverable or project will take?
The entire process usually takes 3–8 weeks, depending on scheduling and the specific role. Coding interviews heavily emphasize common DSA topics such as arrays, strings, trees, graphs, BFS/DFS, heaps, hash maps, and dynamic programming. System design becomes increasingly important for E4+ positions.
Interview questions [1]
Question 1
Given an array of integers and a target value, return the indices of two numbers that add up to the target
