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Day 10: Hoof It

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[-] mykl@lemmy.world 3 points 1 week ago* (last edited 1 week ago)

Uiua

Run it here!

How to read this

Uiua has a very helpful path function built in which returns all valid paths that match your criteria (using diijkstra/a* depending on whether third function is provided), making a lot of path-finding stuff almost painfully simple, as you just need to provide a starting node and three functions: return next nodes, return confirmation if we've reached a suitable target node (here testing if it's = 9), (optional) return heuristic cost to destination (here set to constant 1), .

Data   ā† āŠœā‰”ā‹•āŠøā‰ @\n"89010123\n78121874\n87430965\n96549874\n45678903\n32019012\n01329801\n10456732"
Nā‚„     ā† ā‰”+[0_1 1_0 0_ĀÆ1 ĀÆ1_0]Ā¤
Ns     ā† ā–½:āŸœ(=1-:āˆ©(ā¬š0āŠ”:Data))ā–½āŠøā‰”(/Ɨā‰„0)Nā‚„. # Valid, in-bounds neighbours.
Count! ā† /+ā‰”(ā§»^0āŠ™ā—Œ path(Ns|(=9āŠ”:Data)|1))āŠš=0Data
&p Count!(ā—“ā‰”ā—‡āŠ£)
&p Count!āˆ˜
this post was submitted on 10 Dec 2024
15 points (89.5% liked)

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