A darkness has awoken in Center-earth: an ancient imperative evil is reaching out from every corrupt codebase, intent on algorithmic oppression. Everything cherished will be lost if the growing scourge is not defeated. Join the Kotlin fellowship! We embark on an exciting journey to save Center-earth from the evil Dark Lord For-ron. Our mission: restore pure functional programming and ensure immutability in this peaceful realm.Together, we will master the Kotlin Collection Functions (Set, Map, List) to transform, analyze, and aggregate data. We will unlock the power of: filter, map, partition flatMap, zip, groupBy associateWith, windowed, runningFold You will gain a deep technical comprehension to conquer any complex coding challenge, including the treacherous Advent of Code.Ready to trade imperative code for the elegant power of functional programming? Join the fellowship—the fate of Center-earth is in your hands!