よくありがちな処理。リストの要素の数をそれぞれいくつあるか数える。
scala> val list = List(1,2,2,1,4,2,3,1)
list: List[Int] = List(1, 2, 2, 1, 4, 2, 3, 1)
scala> val counts = list.groupBy(identity).mapValues(_.size)
res4: scala.collection.immutable.Map[Int,Int] = Map(3 -> 1, 1 -> 3, 4 -> 1, 2 -> 3)
scala> counts(1)
res5: Int = 3
もう、ループ回してキーがなかったら １ にして、キーあったら +1 する、なんて糞みたいな処理書かないでいいんだね!
Great article! It’s interesting how much variety online casinos offer now. Seeing stats like Filbet’s 65% slot game focus really highlights that trend. Check out their filbet link for a wide selection – responsible gaming is key, of course!
That’s a solid point about bankroll management – crucial for high-volatility games! Seeing platforms like phdream 11 slot emphasize KYC makes sense for serious players & bigger wins. Strategy is key, not just luck!
Trying out live dealer games? JiliOK offers a smooth, immersive experience with top-tier variety and tech. Check out their AI-driven gameplay and elegant design. New to online gaming? Their step-by-step guide makes it easy to get started. Don’t miss the live action-it’s a game-changer. For a seamless start, visit JiliOK Download.
Interesting read! Managing risk in online gaming is key, especially with the variety of options available now. Seeing platforms like 365jl casino slot download prioritize verification & transparency is a good sign for players. Solid analysis!