Meta E4 Rejected | Android

Coding:

  1. Similar to 1047. Remove All Adjacent Duplicates In String, but had to remove characters alphabetically next to each other e.g. remove “AB” and “BA” instead.
  2. Literally 827. Making A Large Island word for word

AI round

  1. Maze solver. Main algorithm in solver was BFS, had to fix tests

Behavioral

  1. pretty typical questions

System Design

  1. Design an app that changes the user's wallapper image from an image in a user's facebook account when they turn on their phone
    not sure if it's just meta but they only gave me this prompt, no ui mocks. You really have to ask a lot of clarifying questions and come up with the requirements yourself
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