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Solution: String Compression

Understand how to apply the two-pointer technique to perform in-place string compression efficiently. This lesson guides you through run-length encoding using read and write pointers, emphasizing constant space usage and linear time complexity, preparing you for coding interviews.

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 ...