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Solution: String Compression

Explore the two pointers method to implement in-place string compression by detecting consecutive repeating characters and updating the array directly. Understand how to optimize space to constant and achieve linear time complexity while handling groups of characters correctly.

Statement

Given an array of characters, chars, compress it in place according to the following rules:

  1. Start with an empty string s.

  2. For each group of consecutive repeating characters in chars:

    1. If the group length is ...