99 Problems (2010)

Gold S-99: Ninety-Nine Scala Problems 2 Apr 2009, updated 10 Feb 2023 These are an adaptation of the Ninety-Nine Prolog Problems written by Werner Hett at the Berne University of Applied Sciences in Berne, Switzerland. I (Phil! Gold) have altered them to be more amenable to programming in Scala. 1 branch 0 tags Code 23 commits Failed to load latest commit information. project src/main/ scala .gitignore README.md build.sbt README.md S-99: Ninety-Nine Scala Problems These are my solutions to a set of the Ninety-Nine Prolog Problems written by Werner Hett at the Berne University of Applied Sciences in Berne, Switzerland.

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99 Scala Problems Index By Leonardo Giordani - 07/04/2015 Updated on Feb 28, 2019 Programming Scala functional programming Share on: Twitter LinkedIn HackerNews Email Reddit I decided to learn Scala. This repository provides some solution to the 99 scala problems. See: http://aperiodic.net/phil/scala/s-99/ P01 (*) Find the last element of a list Example: scala> last (List (1, 1, 2, 3, 5, 8)) res0: Int = 8 blue-print solution P02 (*) Find the last but one element of a list. Example: scala> penultimate (List (1, 1, 2, 3, 5, 8)) res0: Int = 5 Problems marked with two asterisks () are of intermediate difficulty. If you are a skilled Scala programmer it shouldn't take you more than 30-90 minutes to solve them. Problems marked with three asterisks () are more difficult. You may need more time (i.e. a few hours or more) to find a good solution. The problems have different levels of difficulty. Those marked with a single asterisk (*) are easy. If you have successfully solved the preceeding problems you should be able to solve them within a few (say 15) minutes. Problems marked with two asterisks (**) are of intermediate difficulty.

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99-scala-problems Solutions and tests for Phil Gold's S-99: Ninety-Nine Scala Problems. Table of Contents Lists Arithmetic Logic and Codes Binary Trees Multiway Trees Graphs Miscellaneous Lists P01 (*) Find the last element of a list. scala > last ( List ( 1, 1, 2, 3, 5, 8 )) res0: Int = 8 P02 (*) Find the last but one element of a list. A series of Scala-focused programming problems. Adapted from Werner Hett's Ninety-Nine Prolog Problems.. S-99: Ninety-Nine Scala Problems. 2 Annual 2009, upgraded 10 Feb 2023. Table concerning Contents. Working is tabbed. P01 (*) Find the continue element out a list. P02 (*) Find the previous however one element by a list. You can also use sbt test from the command-line but\nthat's longer since the JVM has to be started everytime.

Use test-only org.p99.scala.P00Spec to test only the problem 00.

. 99 Scala problems Origins In August 2014 I've created a blog post, where I've stated that I will challenge myself to solve well known 99 Scala problems in 333 days. This project holds a code repository for the solutions I came up with during the challenge. ##Follow my travel While solving the problems, I try to my journey on my blog
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Solution: import scala. io. StdIn. _ val name = readLine ("Enter your name: ") println ("Enter your age: ") val age = readInt () println ( Console. BOLD) print ("Name: ") print ( Console. A recursive solution can be written based on this simple algorithm: the number N is used as a countdown, keeping elements until it reaches the value 1. Then the current element is discarded and the process continues with a countdown reset. Solutions for 99 Scala Problems(http://aperiodic.net/phil/scala/s-99/) - Scala99Problems/README.md at master · TrafalgarZZZ/Scala99Problems Working through the 99 scala problems and confused by problem 23. To my eyes, the example is incongruent with the stated problem. Specifically the Symbol 'e in the resulting list isn't in among the input.. Furthermore, these Scala problems are an adaptation of these Ninety-Nine Prolog Problems. You can see the equivalent question there,.
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Inspired by my friend Peter Brachwitz, I also decided to tackle on the "99 problems". He had the noble new-year resolution to solve these problems in Clojure, and post the solutions on his blog. I think it's an excellent idea where both the writer and the reader benefit. Scala: 99 problems My colleague Liz Douglass and I have been playing around with Scala and Liz recently pointed out Phil Gold's ' Ninety Nine Scala Problems ' which we've been working through. One in particular which is quite interesting is number 7 where we need to flatten a nested list structure. Therefore given this input: