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Merged
nmcb merged 2 commits into from
Feb 15, 2026
Merged

cleanup #44

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855a81f
cleanup
nmcb Feb 15, 2026
2b5e643
cleanup
nmcb Feb 15, 2026
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38 changes: 14 additions & 24 deletions 2024/src/main/scala/aoc2024/Day24.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -15,30 +15,21 @@ object Day24 extends AoC:
def rhs: Wire
def out: Wire

def isAND: Boolean =
this match
case a: Gate.AND => true
case _ => false
def isAND: Boolean = false
def isOR: Boolean = false
def isXOR: Boolean = false

def isOR: Boolean =
this match
case a: Gate.OR => true
case _ => false
case class AND(lhs: Wire, rhs: Wire, out: Wire) extends Gate:
override def isAND: Boolean = true

def isXOR: Boolean =
this match
case a: Gate.XOR => true
case _ => false
case class OR(lhs: Wire, rhs: Wire, out: Wire) extends Gate:
override def isOR: Boolean = true

object Gate:
case class AND(lhs: Wire, rhs: Wire, out: Wire) extends Gate
case class OR(lhs: Wire, rhs: Wire, out: Wire) extends Gate
case class XOR(lhs: Wire, rhs: Wire, out: Wire) extends Gate

import Gate.*
case class XOR(lhs: Wire, rhs: Wire, out: Wire) extends Gate:
override def isXOR: Boolean = true

@tailrec
def solve(gates: Vector[Gate], wires: Map[Wire,Boolean]): Map[Wire,Boolean] =
def solve(gates: Vector[Gate], wires: Map[Wire, Boolean]): Map[Wire, Boolean] =
if gates.nonEmpty then
val o = gates.head
val r = gates.tail
Expand Down Expand Up @@ -71,7 +62,7 @@ object Day24 extends AoC:
def wire: Wire = result._1
def value: Boolean = result._2

def sort(gates: Vector[Gate], wires: Map[Wire,Boolean]): Vector[Gate] =
def sort(gates: Vector[Gate], wires: Map[Wire, Boolean]): Vector[Gate] =
@tailrec
def loop(todo: Vector[Gate], result: Vector[Gate], resolved: Set[String]): Vector[Gate] =
if todo.nonEmpty then
Expand All @@ -86,7 +77,6 @@ object Day24 extends AoC:
loop(dependencies ++ todo, result, resolved)
else
result

loop(gates, Vector.empty, wires.keySet)

def debugOUT(gates: Vector[Gate]): Set[Wire] =
Expand Down Expand Up @@ -124,9 +114,9 @@ object Day24 extends AoC:

val operations =
lines.collect[Gate]:
case s"$t1 XOR $t2 -> $out" => Gate.XOR(t1, t2, out)
case s"$t1 OR $t2 -> $out" => Gate.OR(t1, t2, out)
case s"$t1 AND $t2 -> $out" => Gate.AND(t1, t2, out)
case s"$t1 XOR $t2 -> $out" => XOR(t1, t2, out)
case s"$t1 OR $t2 -> $out" => OR(t1, t2, out)
case s"$t1 AND $t2 -> $out" => AND(t1, t2, out)

(initial, operations)

Expand Down