Coder Solves Binary Rearrangement and Chemical Formula Parsing in Weekly Challenge 387

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Mohammad S. Anwar's Weekly Challenge 387 presented two programming tasks solved this week using Python and Perl. The first task required rearranging a binary string by repeatedly swapping all '01' occurrences with '10' until none remained, returning the total number of steps taken. The second task involved parsing a chemical formula containing elements, numbers, and nested parentheses, then expanding all grouped multipliers to produce an alphabetically sorted atom inventory. Both solutions were implemented without AI assistance, using regular expressions as the core technique in each language. The challenges serve as a regular community exercise for developers to sharpen their coding skills across different programming languages.

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