Last active
August 8, 2019 12:58
-
-
Save ThanosFisherman/09b901852a324b1cdb4482587d2443d9 to your computer and use it in GitHub Desktop.
From Coursera course "Kotlin for Java developers" week 2 - Mastermind game solution
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
package mastermind | |
data class Evaluation(val rightPosition: Int, val wrongPosition: Int) | |
fun evaluateGuess(secret: String, guess: String): Evaluation { | |
var rightPos = 0 | |
var wrongPos = 0 | |
if (secret == guess) { | |
return Evaluation(4, 0) | |
} | |
val secretList = secret.toMutableList() | |
val guessList = guess.toMutableList() | |
var iterator = guessList.listIterator() | |
while (iterator.hasNext()) { | |
val i = iterator.nextIndex() | |
if (iterator.next() == secretList[i]) { | |
rightPos++ | |
secretList.removeAt(i) | |
iterator.remove() | |
} | |
} | |
iterator = guessList.listIterator() | |
while (iterator.hasNext()) { | |
val nextChar = iterator.next() | |
if (nextChar in secretList) { | |
wrongPos++ | |
secretList.removeAt(secretList.indexOf(nextChar)) | |
iterator.remove() | |
} | |
} | |
return Evaluation(rightPos, wrongPos) | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment