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Decode the Coding Interview in Elixir: Real-World Examples

DIY: UTF-8 Validation

Explore how to validate UTF-8 encoding by analyzing integer arrays as byte sequences. Understand the rules for single and multi-byte characters, and implement a function to check encoding validity, enhancing your skills in encoding standards relevant to cyber security.

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Problem description

Given an integer array data, return whether it is a valid UTF-8 encoding.

A character in UTF8 can be from 1 to 4 bytes long, subject to the following rules:

  • For a 1 byte character, the first bit of the packet is 0, followed by its Unicode code.
  • For an n-bytes character, the first
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