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Cleaned up day 6

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This commit is contained in:
Daniel Flanagan 2020-12-05 23:34:12 -06:00
parent f2d593837e
commit 0956d914c7
Signed by: lytedev
GPG key ID: 5B2020A0F9921EF4
1 changed files with 5 additions and 4 deletions
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9
2020/src/day6.nim
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@ -1,9 +1,10 @@
import streams, sets, strutils, sequtils import streams, sets, strutils, sequtils
proc asGroups(s: Stream): seq[seq[string]] =
s.readAll.split("\n\n").mapIt it.split("\n").filterIt(it != "")
proc part1*(s: Stream): int = proc part1*(s: Stream): int =
s.readAll().split("\n\n").mapIt(it.split("\n").foldl(a.union(b.toHashSet), initHashSet[char]()).len).foldl(a + b) s.asGroups.mapIt(it.foldl(a.union(b.toHashSet), initHashSet[char]()).len).foldl a + b
proc part2*(s: Stream): int = proc part2*(s: Stream): int =
s.readAll().split("\n\n").mapIt( s.asGroups.mapIt(it.foldl(a.intersection(b.toHashSet), toSeq('a'..'z').toHashSet).len).foldl(a + b)
it.split("\n").filterIt(it != "").foldl(a.intersection(b.toHashSet), "abcdefghijklmnopqrstuvwxyz".toHashSet()).len
).foldl(a + b)