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1. 1

   import scala.annotation.tailrec

   4

     def validUtf8(data: Array[Int]): Boolean = validUtf8(data.toList)

2. 3

   case class Pattern(pattern: String):

   4

     def find(part: String)(s: String) =

   5

       val start = pattern.indexOf(part)

3. created for Rosetta Code https://rosettacode.org/wiki/Conway%27s_Game_of_Life#Java_10

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4. Wordle solver in Scala

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5. Raku - The Only Correct Programming Language

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6. In Clojure this year

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