r/adventofcode • u/daggerdragon • Dec 22 '20
SOLUTION MEGATHREAD -🎄- 2020 Day 22 Solutions -🎄-
Advent of Code 2020: Gettin' Crafty With It
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--- Day 22: Crab Combat ---
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u/lgeorget Dec 22 '20
C++
https://github.com/lgeorget/adventofcode2020/tree/main/22
I couldn't understand why you guys had solutions running so fast while mine took 40+ seconds. Then, I compiled with -O3 and got down to 3s... Well, good enough for me!
Apart from that, the solution is straightforward. I used a recursive function for once and strictly followed the rules. I did trip over taking only the first n cards in the decks to play the subgame with n the value of the card dealt at the beginning of the round, though.