Solving a Facebook Engineer Interview Question without Coding

Published: 11 May 2021
on channel: Coderbyte

1,130

In this video, Liz breaks down a logic question she encountered during a Facebook engineer interview.

This problem is part riddle and part math. It involves two glass balls and a building with 100 floors. We want to determine the highest floor a ball can be dropped without breaking them.

Without using any coding, Liz provides strategies for how to use logic and basic math skills to reason through a problem during an interview.

0:25 Problem overview
1:15 Breaking the problem down to subproblem
3:25 Binary approach
17:49 Using Gauss’s formula

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