Maximize Beautiful Substrings

Problem Overview

• Given a string with lowercase letters and dots, replace each dot to maximize the number of beautiful substrings (contiguous segments of identical characters).
• Input: string "color" with characters 'a'-'z' and '.', Output: integer for the maximum total beautiful substrings.
• Domain: string manipulation and optimization, relevant to pattern formation and sequence design.
• Common coding interview interview question; a practical problem used to assess string reasoning skills.