Facebook Phone Interview Questions 2020

Posted by Mel

Facebook Phone Interview Questions 2019

updated June 2019

1.1 Sort Strings Based on Custom Alphabet Order

1.2 Decode String



2.1 Read File by Read4 API | Read N Characters Given Read4

2.2 Find Leftmost 0 in Sorted 2D Array



3.1 Get Product of Array Except Self

3.2 3Sum | Three Sum



4.1 Find Sum of Columns in Binary Tree | Binary Tree Vertical Order Traversal Sum



4.2 Build String with Words in Dictionary



5.1 Integer to English Words

5.2 Find Subarray with the Maximum Sum | Kadane's Algorithm Greedy

More Facebook Interview Questions updates are on the way. Follow us....



Get one-to-one training from Google Facebook engineers

One-on-One Algorithm and Coding Training

One-on-One System Design Training

One-on-One Mock Interview


Top-notch Professionals

Learn from Facebook, Google, Uber senior engineers interviewed 100+ candidates.aonecode.com
Most recent interview questions and system design topics gathered from aonecode alumnus.
One-to-one online classes. Get feedbacks from real interviewers.


Customized Private Class

Already a coding expert? - Advance straight to hard interview topics of your interest.
New to the ground? - Develop basic coding skills with your own designated mentor.
Days before interview? - Focus on most important problems in target company question bank.


Free Consultation

aonecoding@gmail.com