codefights arcade intro task 25
arrayReplace https://
arrayReplace https://
leastFactorial https://
minesweeper https://
evenDigitsOnly https://
firstDigit https://
deleteDigit https://
fileNaming https://
centuryFromYear https://
sortByHeight https://
digitsProduct https://
avoidObstacles https://
spiralNumbers https://
buildPalindrome https://