String compression

Name: PyRun — Python Playground
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EasyPattern: Strings

Write compress(s) that turns runs of the same letter into letter + count: "aabcccccaaa" → "a2b1c5a3". If the result is not shorter than s, return s unchanged.

compress("aabcccccaaa")  ->  "a2b1c5a3"
compress("abc")          ->  "abc"

solution.py

Stuck on the idea itself? The strings lesson walks through the pattern from scratch.

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