Created
January 26, 2015 00:10
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008.scala
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// Answer is supposed to be : 23514624000 | |
object Eight { | |
val sampleData = "7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450" | |
def main(args: Array[String]) { | |
def maxProduct(str: String, substrLen: Int): Long = { | |
val intArray = str.toCharArray.map(_.asDigit) | |
intArray.sliding(substrLen).map(x => x.product).max | |
} | |
println(s"The max product is: ${maxProduct(sampleData,13)}") | |
} | |
} |
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Fails, because asDigit returns ints... but ints overflow during the product calculation.