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Challenges Run-length encode a byte sequence

Japt -P, 28 bytes Input as an array of hex strings, output as a single hex string. òÀ cÈòIÉ Ë¤¬?DÎiDc#Ào)ÊsG:D¬ Try it or run all test cases (headers & footers reformat I/O)

posted 5mo ago by Shaggy‭

Answer
#1: Initial revision by user avatar Shaggy‭ · 2026-04-16T13:22:40Z (5 months ago) 
# [Japt](https://github.com/ETHproductions/japt) [`-P`](https://codegolf.meta.stackexchange.com/a/14339/), 28 [bytes](https://en.wikipedia.org/wiki/ISO/IEC_8859-1)

Input as an array of hex strings, output as a single hex string.

    òÀ cÈòIÉ Ë¤¬?DÎiDc#Ào)ÊsG:D¬

[Try it](https://petershaggynoble.github.io/Japt-Interpreter/?v=1.4.6&flags=LVA&header=uA&code=8sAgY8jySckgy6SsP0TOaURjI8BvKcpzRzpErA&input=IjAwIDAwIDAwIDAxIDAxIDAwIg) or [run all test cases](https://petershaggynoble.github.io/Japt-Interpreter/?v=1.4.6&header=uA&code=8sAgY8jySckgy6SsP0TOaURjI8BvKcpzRzpErA&footer=VqzyILg&input=WwoiMDAgMDEgMDIgMDMgMDQiCiIwMCAwMCAwMCAwMSAwMSAwMCIKImJlIGJmIGMwIGMxIGMyIgoKIjAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIgoKIjAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIgoKIjAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIgoKIjAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIgoKImZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIgoKImZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIgoKImZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIgoKImZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmIgpdLW1S) (headers & footers reformat I/O)