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Cleanup functions

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zuckerberg 2022-12-03 19:53:50 -07:00
parent 13f84a3296
commit fb7913ad3d
2 changed files with 5 additions and 5 deletions
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2
1/solution.nix
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@ -6,7 +6,7 @@ let
totalsPerElf = map sum elfCalories; totalsPerElf = map sum elfCalories;
part1 = maxList totalsPerElf; part1 = maxList totalsPerElf;
part2 = sum (topOfList (sortList totalsPerElf) 3); part2 = sum (topOfList 3 (sortList totalsPerElf));
in { in {
inherit part1; inherit part1;
inherit part2; inherit part2;

8
util.nix
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@ -6,15 +6,15 @@ let
# Passthrough trace for debugging # Passthrough trace for debugging
pTrace = v: lib.traceSeq v v; pTrace = v: lib.traceSeq v v;
# find the total sum of a int list # find the total sum of a int list
sum = l: lib.foldr (x: y: x + y) 0 l; sum = lib.foldr (x: y: x + y) 0;
# splits a list of length two into two params then they're passed to a func # splits a list of length two into two params then they're passed to a func
split = pair: f: f (lib.head pair) (lib.last pair); split = pair: f: f (lib.head pair) (lib.last pair);
# Finds the max value in a list # Finds the max value in a list
maxList = l: lib.foldr lib.max 0 l; maxList = lib.foldr lib.max 0;
# Sorts a int list. Greatest value first # Sorts a int list. Greatest value first
sortList = l: lib.sort (x: y: x > y) l; sortList = lib.sort (x: y: x > y);
# Returns the top cnt items of the list # Returns the top cnt items of the list
topOfList = l: cnt: lib.take cnt l; topOfList = cnt: lib.take cnt;
# Cuts a list in half and returns the two parts in a list # Cuts a list in half and returns the two parts in a list
cutInHalf = l: [(lib.take (lib.length l / 2) l) (lib.drop (lib.length l / 2) l)]; cutInHalf = l: [(lib.take (lib.length l / 2) l) (lib.drop (lib.length l / 2) l)];
# Splits a list into a list of lists with length cnt # Splits a list into a list of lists with length cnt