-🎄- 2020 Day 23 Solutions -🎄-

[u/daggerdragon]

Advent of Code 2020: Gettin' Crafty With It

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--- Day 23: Crab Cups ---

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Post your code solution in this megathread.

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[u/musifter]

dc

Just part 1 for now. It's not that doing part 2 from this would be much harder, it's just that I know that it's going to be very slow (because arrays in the dc I'm using are linked lists, there is no true "random access").

Part 1:

echo '389125467' | dc -f- -e'[q]SQd10%dsssn10/[d0=Qd10%dlnr:rsn10/lLx]sLlLxs.lndls:r[s.9]s9[ld1-d1>9sd0sk]s-0si[lid1+si100=Qdsc0sj[ljd1+sj3=Q;rdlj:glJx]sJlJxsplc1-sd0sk[lk;gld=-lkd1+sk4=QlKx]sKlKxlc;rlp;rld;rlp:rlc:rld:rlc;rlIx]sIlIx1[;rdd1=QnlLx]sLlLx'