Meta E5 Full-loop interview
- Posted
- 5 Aug 2025
Summary
I interviewed for an E5 role at Meta, going through a full loop that included two coding rounds, a product architecture round, and a behavioral round.
How it went
Coding Round 1
- Binary tree question on the lines of getting Left side view + right side view of the tree
- 2 pointer problem on strings called Internationalization(Meta tagged)
Coding Round 2
- Get path from entry 0,0 to exit gate 2-d array traversal problem
- View ocean array problem (Meta tagged)
Product Architecutre
- Online coding competition platform
Behavioural
- General/usual kind of questions
Questions asked (5)
- 01
Left and Right Side View of Binary Tree
Data Structures & Algorithms · Medium
Given the root of a binary tree, imagine myself standing on the left side of it and return the values of the nodes I can see, ordered from top to bottom. Do the same for the right side view. The question was on the lines of combining these two concepts.
- 02
Internationalization (2-Pointer String Problem)
Data Structures & Algorithms
A 2-pointer problem focused on strings, specifically named 'Internationalization' and described as 'Meta tagged'.
- 03
Path in 2D Array from (0,0) to Exit Gate
Data Structures & Algorithms
Given a 2D array, find a path from the entry point at coordinates (0,0) to an exit gate.
- 04
View Ocean Array Problem
Data Structures & Algorithms
A problem specifically referred to as 'View ocean array problem' and tagged by Meta.
- 05
Design an Online Coding Competition Platform
System Design · Hard
Design a system for an online coding competition platform.