diff options
Diffstat (limited to 'solutions/day11.fs')
| -rw-r--r-- | solutions/day11.fs | 198 |
1 files changed, 98 insertions, 100 deletions
diff --git a/solutions/day11.fs b/solutions/day11.fs index 2b93042..d9a9d17 100644 --- a/solutions/day11.fs +++ b/solutions/day11.fs @@ -1,108 +1,106 @@ -namespace Solutions +module Solutions.Day11 +type Monkey = { + Items: int64 list + Operation: int64 -> int64 + Test: int64 + TrueMonkey: int + FalseMonkey: int + Inspections: int64 +} -module Day11 = - type Monkey = { - Items: int64 list - Operation: int64 -> int64 - Test: int64 - TrueMonkey: int - FalseMonkey: int - Inspections: int64 - } +let monkeys = + [ { Items = [89; 95; 92; 64; 87; 68] + Operation = (*) 11L + Test = 2 + TrueMonkey = 7 + FalseMonkey = 4 + Inspections = 0 } + { Items = [87; 67] + Operation = (+) 1L; + Test = 13; + TrueMonkey = 3 + FalseMonkey = 6 + Inspections = 0 } + { Items = [95; 79; 92; 82; 60] + Operation = (+) 6L + Test = 3 + TrueMonkey = 1 + FalseMonkey = 6 + Inspections = 0 } + { Items = [67; 97; 56] + Operation = fun x -> x * x + Test = 17 + TrueMonkey = 7 + FalseMonkey = 0 + Inspections = 0 } + { Items = [80; 68; 87; 94; 61; 59; 50; 68] + Operation = (*) 7L + Test = 19 + TrueMonkey = 5 + FalseMonkey = 2 + Inspections = 0 } + { Items = [73; 51; 76; 59] + Operation = (+) 8L + Test = 7 + TrueMonkey = 2 + FalseMonkey = 1 + Inspections = 0 } + { Items = [92] + Operation = (+) 5L + Test = 11 + TrueMonkey = 3 + FalseMonkey = 0 + Inspections = 0 } + { Items = [99; 76; 78; 76; 79; 90; 89] + Operation = (+) 7L + Test = 5 + TrueMonkey = 4 + FalseMonkey = 5 + Inspections = 0 } ] - let monkeys = - [ { Items = [89; 95; 92; 64; 87; 68] - Operation = (*) 11L - Test = 2 - TrueMonkey = 7 - FalseMonkey = 4 - Inspections = 0 } - { Items = [87; 67] - Operation = (+) 1L; - Test = 13; - TrueMonkey = 3 - FalseMonkey = 6 - Inspections = 0 } - { Items = [95; 79; 92; 82; 60] - Operation = (+) 6L - Test = 3 - TrueMonkey = 1 - FalseMonkey = 6 - Inspections = 0 } - { Items = [67; 97; 56] - Operation = fun x -> x * x - Test = 17 - TrueMonkey = 7 - FalseMonkey = 0 - Inspections = 0 } - { Items = [80; 68; 87; 94; 61; 59; 50; 68] - Operation = (*) 7L - Test = 19 - TrueMonkey = 5 - FalseMonkey = 2 - Inspections = 0 } - { Items = [73; 51; 76; 59] - Operation = (+) 8L - Test = 7 - TrueMonkey = 2 - FalseMonkey = 1 - Inspections = 0 } - { Items = [92] - Operation = (+) 5L - Test = 11 - TrueMonkey = 3 - FalseMonkey = 0 - Inspections = 0 } - { Items = [99; 76; 78; 76; 79; 90; 89] - Operation = (+) 7L - Test = 5 - TrueMonkey = 4 - FalseMonkey = 5 - Inspections = 0 } ] +let throw item target monkeys = + let monkey = List.item target monkeys - let throw item target monkeys = - let monkey = List.item target monkeys - - List.updateAt target {monkey with Items = (List.append monkey.Items [item])} monkeys + List.updateAt target {monkey with Items = (List.append monkey.Items [item])} monkeys - let doItem operation monkey monkeys item = - let worryLevel = monkey.Operation item - let boredLevel = operation worryLevel - let target = if boredLevel % monkey.Test = 0L then monkey.TrueMonkey else monkey.FalseMonkey - throw boredLevel target monkeys - - let playTurn operation monkeys id = - let monkey = List.item id monkeys +let doItem operation monkey monkeys item = + let worryLevel = monkey.Operation item + let boredLevel = operation worryLevel + let target = if boredLevel % monkey.Test = 0L then monkey.TrueMonkey else monkey.FalseMonkey + throw boredLevel target monkeys - let cleared = monkeys - |> List.updateAt - id - {monkey with Items = [] - Inspections = monkey.Inspections + (int64 monkey.Items.Length)} - - monkey.Items |> List.fold (doItem operation monkey) cleared - - let playRound operation monkeys = - let players = [ 0 .. (List.length monkeys - 1)] - List.fold (playTurn operation) monkeys players +let playTurn operation monkeys id = + let monkey = List.item id monkeys + + let cleared = monkeys + |> List.updateAt + id + {monkey with Items = [] + Inspections = monkey.Inspections + (int64 monkey.Items.Length)} - let rec playRounds operation nb monkeys = - if nb = 0 then monkeys - else - let next = playRound operation monkeys - playRounds operation (nb - 1) next + monkey.Items |> List.fold (doItem operation monkey) cleared - let solve operation count = - monkeys - |> playRounds operation count - |> List.map (fun m -> m.Inspections) - |> List.sortDescending - |> List.take 2 - |> List.reduce (*) +let playRound operation monkeys = + let players = [ 0 .. (List.length monkeys - 1)] + List.fold (playTurn operation) monkeys players - let part1 () = - solve (fun x -> x / 3L) 20 - - let part2 () = - let safeMod = monkeys |> Seq.map (fun m -> m.Test) |> Seq.reduce (*) - solve (fun x -> x % safeMod) 10_000 +let rec playRounds operation nb monkeys = + if nb = 0 then monkeys + else + let next = playRound operation monkeys + playRounds operation (nb - 1) next + +let solve operation count = + monkeys + |> playRounds operation count + |> List.map (fun m -> m.Inspections) + |> List.sortDescending + |> List.take 2 + |> List.reduce (*) + +let part1 () = + solve (fun x -> x / 3L) 20 + +let part2 () = + let safeMod = monkeys |> Seq.map (fun m -> m.Test) |> Seq.reduce (*) + solve (fun x -> x % safeMod) 10_000 |