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Decode the Coding Interview in C++: Real-World Examples

DIY: UTF-8 Validation

Understand and implement UTF-8 validation in C++ by analyzing byte-level encoding rules. Learn to verify if a sequence of integers represents a valid UTF-8 encoded character array, enhancing skills in data integrity and security checks.

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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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