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    The Gray Code Decoder and Gray Code Encoder holes will go live in approximately . Why not try and solve them ahead of time?

    ndren

    103,482
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    107,813
    🥇90
    •
    🥈7
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    🥉4

    Free achievement

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    126 / 126 Holes

    🔣

    61 / 64 Langs

    🏆

    80 / 109 Cheevos

    📅

    Card Number Validation in Python in Chars Play Hole

    14th in Python and 71st overall.

    Last tested .

    Runtime of .

    Bytes Chars Submitted
    166 72
    175 75
    178 76
    199 83
    115 115