Meta E4 Software Engineer | Offer

Hi,

I just received an offer from Meta for E4 SE role. Sharing my interview experience and giving back to the community.

Phone Screen:

Question 1:

Given a list of integers, return the maximum sum of two numbers. Constraint is that the two numbers should not be adjacent to each other

Question 2:

Given a list of Node references, return the root node of the tree if all the nodes in the list belong to one tree else return null.

Was provided with the below node definition

class Node {
    Node left;
    Node right;
}

Received a call from the recruiter 2 days later that I was moving on to the onsite rounds.

Onsite rounds

Round 1 (Coding):

LC 938: Range Sum of BST
LC 56: Merge Intervals. I was asked the variant of it. Given 2 sorted lists and asked to merge the intervals. You can refer to CodingWithMinmer youtube channel for all variants.

Round 2 (System Design):

Status search - similar to FB post search on HelloInterview.

Round 3 (Coding):

LC 346: Moving average from Data Stream
LC 1650: Lowest Common Ancestor of Binary Tree III

Round 4 (Behavioral):

Common behavioral questions