make numbers in can* methods of operations immutable

This commit is contained in:
InsanusMokrassar 2018-09-05 14:13:27 +08:00
parent 01dd60772a
commit 68b342d0e4
1 changed files with 20 additions and 20 deletions

View File

@ -42,8 +42,8 @@ suspend fun availableInverts(numbers: MutableList<Byte>, operations: List<Operat
}
sealed class Operation {
abstract suspend fun canConvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean
abstract suspend fun canInvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean
abstract suspend fun canConvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean
abstract suspend fun canInvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean
suspend fun convert(numbers: MutableList<Byte>, changesHistory: MutableList<Operation>? = null) {
if (changesHistory ?.let { canConvert(numbers, changesHistory) } == true || changesHistory == null) {
doConvert(numbers, changesHistory)
@ -63,10 +63,10 @@ sealed class Operation {
}
object TwoGrowFour : Operation() {
override suspend fun canConvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canConvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return numbers.count { it == twoAsByte } / 2 > changesHistory.count { it == FourGrowTwo }
}
override suspend fun canInvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canInvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return numbers.contains(fourAsByte) && changesHistory.contains(this)
}
@ -88,10 +88,10 @@ object TwoGrowFour : Operation() {
}
object FourGrowTwo : Operation() {
override suspend fun canConvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canConvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return numbers.count { it == fourAsByte } > changesHistory.count { it == TwoGrowFour }
}
override suspend fun canInvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canInvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return numbers.count { it == twoAsByte } > 1 && changesHistory.contains(this)
}
@ -105,11 +105,11 @@ object FourGrowTwo : Operation() {
}
object EightGrowOne : Operation() {
override suspend fun canConvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canConvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return numbers.contains(eightAsByte)
&& (TwoGrowFour.canConvert(numbers, changesHistory) || FourGrowTwo.canConvert(numbers, changesHistory))
}
override suspend fun canInvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canInvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return numbers.count { it == oneAsByte } > 1 && changesHistory.contains(this)
}
@ -137,10 +137,10 @@ object EightGrowOne : Operation() {
}
object OneGrowEight : Operation() {
override suspend fun canConvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canConvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return numbers.count { it == oneAsByte} > 1
}
override suspend fun canInvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canInvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return numbers.contains(eightAsByte) && changesHistory.contains(this)
}
@ -154,10 +154,10 @@ object OneGrowEight : Operation() {
}
object SixGrowSeven : Operation() {
override suspend fun canConvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canConvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return numbers.contains(sixAsByte)
}
override suspend fun canInvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canInvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return numbers.contains(sevenAsByte) && changesHistory.contains(this)
&& !changesHistory.containsSimpleGrows
}
@ -178,11 +178,11 @@ object SixGrowSeven : Operation() {
}
object SevenGrowSix : Operation() {
override suspend fun canConvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canConvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return numbers.contains(sevenAsByte)
&& !changesHistory.containsSimpleGrows
}
override suspend fun canInvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canInvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return numbers.contains(sixAsByte) && changesHistory.contains(this)
}
@ -196,7 +196,7 @@ object SevenGrowSix : Operation() {
}
object FiveGrowNine : Operation() {
override suspend fun canConvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canConvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return changesHistory.canGrowSimpleWay
&& (
numbers.count {
@ -205,7 +205,7 @@ object FiveGrowNine : Operation() {
) > changesHistory.count { it == this }
}
override suspend fun canInvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canInvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return changesHistory.contains(this)
}
@ -219,12 +219,12 @@ object FiveGrowNine : Operation() {
}
object NineGrowFive : Operation() {
override suspend fun canConvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canConvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return changesHistory.canGrowSimpleWay
&& (numbers.count { it == nineAsByte } - changesHistory.count { it == FiveGrowNine }) > changesHistory.count { it == this }
}
override suspend fun canInvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canInvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return changesHistory.contains(this)
}
@ -240,12 +240,12 @@ object NineGrowFive : Operation() {
}
private class GrowCustom(private val number: Byte) : Operation() {
override suspend fun canConvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canConvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return changesHistory.canGrowSimpleWay
&& changesHistory.firstOrNull { it is GrowCustom && it.number == number } == null
}
override suspend fun canInvert(numbers: MutableList<Byte>, changesHistory: List<Operation>): Boolean {
override suspend fun canInvert(numbers: List<Byte>, changesHistory: List<Operation>): Boolean {
return changesHistory.firstOrNull { it is GrowCustom && it.number == number } != null
&& numbers.contains(number)
}