[LeetCode] UTF-8 Validation

393. UTF-8 Validation Given an integer array data representing the data, return whether it is a valid UTF-8 encoding. A character in UTF8 can be from 1 to 4 bytes long, subjected to the following rules: For a 1-byte character, the first bit is a 0, followed by its Unicode code. For an n-bytes character, the first n bits are all one’s, the n + 1 bit is 0, followed by n - 1 bytes with the most significant 2 bits being 10. This is how the UTF-8 encoding would work: Char. number range | ...

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