39 practice questions for Meta Full Stack Engineer interviews
Meta full stack engineer interviews cover both frontend and backend topics including API design, database modelling, React or Vue components, and end-to-end system design.
Category: Graph coding problem# Question Your task is to implement a simple in-memory cloud storage system that maps objects (files) to their metadata (name, size, etc.). You...Input: Graph (nodes and edges) Output: Array
codingHardVerified Question#2
2. OA[CodeSignal] Design Banking System
Category: Graph coding problem# Question Design a banking system that supports account management, transactions, and various financial operations.Input: Graph (nodes and edges) Output: Computed result
codingMediumVerified Question#3
3. Friend Requests Sent
Category: Algorithm coding problem# Question Given a list of ages representing users in a social network, calculate the total number of friend requests each user will send based on...Input: List Output: Computed result
codingHardVerified Question#4
4. Minimum Prefix Subset
Category: Tree coding problem# Question Given a list of strings, find the minimum subset of prefixes that can represent the entire input set. A string is "represented" if it...Input: Array of strings Output: Integer
codingMediumVerified Question#5
5. Shortest Substring with Alphabet
Category: Sliding window coding problem*This is a popular twist Meta interviewers often put on the classic leetcode problem to find a minimum window substring.* Given an input string and...Input: String Output: Integer
codingMediumVerified Question#6
6. Shortest Substring with N Unique Characters
Category: String coding problem# Shortest Substring with N Unique Characters *This is a variation of the leetcode problem* Given a string s and an integer n, find the length of...Input: String Output: Computed result
codingHardVerified Question#7
7. OA[CodeSignal] In-Memory Database
Category: Graph coding problem# Description Implement a simplified in-memory database that supports record manipulation with various operations. The system should handle basic...Input: Graph (nodes and edges) Output: Array
codingEasyVerified Question#8
8. [CodeSignal] Count Non-Dominant Elements
Category: Array coding problem# Question Given an array of integers numbers, count all elements that are not equal to numbers[0] or numbers[1] (if those indices exist in the...Input: Array of integers Output: Computed result
codingEasyVerified Question#9
9. [CodeSignal] Sort Words By Vowel Consonant Difference
Category: Array coding problem# Question You are given a string text consisting of unique lowercase English words separated by spaces. For each word, compute the absolute...Input: Array Output:** Computed result
codingMediumVerified Question#10
10. [CodeSignal] Warehouse Robot Commands
Category: Matrix coding problem# Question In a highly automated warehouse, a robot organizes packages stored in a rectangular grid. The grid is represented as a 2D list of integers...Input: Matrix (2D array) Output: Computed result
codingHardVerified Question#11
11. [CodeSignal] House Segments After Destruction
Category: Array coding problem# Question You are monitoring the building density in a district of houses. The district is represented as a number line, where each house is located...Input: Array of integers Output: Array
codingMediumVerified Question#12
12. Distribution Center Placement
Category: Array coding problemA logistics company is expanding its distribution network along a single highway. You are given an array of integers locations representing the...Input: Array of integers Output: Computed result
codingHardVerified Question#13
13. Expression Simplifier
Category: String coding problemGiven an algebraic expression string containing single lowercase-letter variables, the operators + and -, and parentheses ( and ), simplify...Input: String Output: Computed result
codingMediumVerified Question#14
14. Minimum Sum Tree Path
Category: Binary tree coding problem# Minimum Sum Tree PathInput: Binary tree Output: Computed result
technicalMediumVerified Question#15
15. How to pass AI Enabled Coding Rounds From FAANG Interviewer
Category: Algorithm coding problem# Tips For AI Coding Rounds AI coding rounds are not as different from regular coding rounds as you might think. The interviewer still needs to get...Input: Given input Output: Computed result