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# Christian Siegert ChristianSiegert

Created Oct 13, 2012
Solution written in Go for challenge 2012-10-12 on ProgrammingPraxis.com
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 // The MIT License (MIT) // Copyright (c) 2012 Christian Siegert // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: //
Created Jun 17, 2012
Solution written in Go for challenge 2012-03-23 on ProgrammingPraxis.com
View challenge-2012-03-23.go
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 // Exercise from: http://programmingpraxis.com/2012/03/23/base-26-arithmetic/ // Exercise: Write a function that takes two base-26 numbers in which digits are represented by letters with A=0, B=1, … Z=25 and returns their product using the same notation. As an example, CSGHJ × CBA = FNEUZJA. package main import ( "fmt" "math" )
Created Jun 16, 2012
Solution written in Go for challenge 2012-03-16 on ProgrammingPraxis.com
View challenge-2012-03-16.go
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 package main import ( "fmt" "math" ) func main() { fmt.Println("Exercise from: http://programmingpraxis.com/2012/03/16/sum-of-squares-of-two-largest-of-three-values/") fmt.Println("Exercise: Define a procedure that takes three numbers as arguments and returns the sum of the squares of the two larger numbers.")
Created Jun 16, 2012
Solution written in Go for challenge 2012-05-25 on ProgrammingPraxis.com
View challenge-2012-05-25.go
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 package main import ( "fmt" ) func main() { fmt.Println("Challenge from: http://programmingpraxis.com/2012/05/25/ackermanns-function/") fmt.Println("Challenge: Your task is to implement Ackermann’s function.") fmt.Println("A(3, 4):", A(3, 4))
Created Jun 16, 2012
Solutions written in Go for challenge 2012-06-15 on ProgrammingPraxis.com
View challenge-2012-06-15-a.go
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 package main import ( "fmt" "strconv" ) func main() { fmt.Println("Question from: http://programmingpraxis.com/2012/06/15/counting-ones/") fmt.Println("Question: Consider a function f that takes a positive integer n and returns the number of 1s in the decimal representation of all the integers from 0 to n, inclusive. For example, f(13) = 6, for the numbers 1, 10, 11 (twice, for two 1s), 12 and 13. Notice that f(1) = 1. After 1, what is the next largest n for which f(n) = n?")