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ErikSchierboomErikSchierboom
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Merge pull request #501 from robkeim/armstrong-number
Add ArmstrongNumbers exercise
2 parents 8ebeb57 + bbb8334 commit 23e6a86

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13 files changed

+156
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‎config.json

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"unlocked_by": "sum-of-multiples",
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"uuid": "c4efbf8a-8e76-4700-807d-830a4938f4d0"
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},
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{
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"core": false,
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"difficulty": 2,
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"slug": "armstrong-numbers",
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"topics": [
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"mathematics"
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],
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"unlocked_by": "sum-of-multiples",
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"uuid": "8150604d-4cdc-414a-a523-dd65ac536f0e"
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},
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{
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"core": true,
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"difficulty": 3,

‎exercises/Exercises.sln

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio 15
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VisualStudioVersion = 15.0.27004.2008
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VisualStudioVersion = 15.0.27004.2009
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MinimumVisualStudioVersion = 15.0.26124.0
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Accumulate", "accumulate\Accumulate.csproj", "{F16C0EE1-6923-4328-B015-363CF24FF867}"
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EndProject
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EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ReverseString", "reverse-string\ReverseString.csproj", "{D2105979-EE3B-432B-8016-172BA949DE2F}"
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EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ArmstrongNumbers", "armstrong-numbers\ArmstrongNumbers.csproj", "{7015C2C4-4050-4631-9394-7EAF19AB0191}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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{D2105979-EE3B-432B-8016-172BA949DE2F}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{D2105979-EE3B-432B-8016-172BA949DE2F}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{D2105979-EE3B-432B-8016-172BA949DE2F}.Release|Any CPU.Build.0 = Release|Any CPU
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{7015C2C4-4050-4631-9394-7EAF19AB0191}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{7015C2C4-4050-4631-9394-7EAF19AB0191}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{7015C2C4-4050-4631-9394-7EAF19AB0191}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{7015C2C4-4050-4631-9394-7EAF19AB0191}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE

‎exercises/armstrong-numbers/ArmstrongNumbers.cs

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using System;
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public static class ArmstrongNumbers
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{
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public static bool IsArmstrongNumber(int number)
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{
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throw new NotImplementedException("You need to implement this function.");
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}
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}

‎exercises/armstrong-numbers/ArmstrongNumbers.csproj

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>netcoreapp2.0</TargetFramework>
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</PropertyGroup>
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<ItemGroup>
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<Compile Remove="Example.cs" />
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</ItemGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.5.0" />
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<PackageReference Include="xunit" Version="2.3.1" />
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<PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
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</ItemGroup>
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</Project>

‎exercises/armstrong-numbers/ArmstrongNumbersTest.cs

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// This file was auto-generated based on version 1.0.0 of the canonical data.
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using Xunit;
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public class ArmstrongNumbersTest
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{
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[Fact]
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public void Single_digit_numbers_are_armstrong_numbers()
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{
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Assert.True(ArmstrongNumbers.IsArmstrongNumber(5));
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}
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[Fact(Skip = "Remove to run test")]
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public void There_are_no_2_digit_armstrong_numbers()
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{
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Assert.False(ArmstrongNumbers.IsArmstrongNumber(10));
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}
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[Fact(Skip = "Remove to run test")]
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public void Three_digit_number_that_is_an_armstrong_number()
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{
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Assert.True(ArmstrongNumbers.IsArmstrongNumber(153));
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}
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[Fact(Skip = "Remove to run test")]
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public void Three_digit_number_that_is_not_an_armstrong_number()
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{
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Assert.False(ArmstrongNumbers.IsArmstrongNumber(100));
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}
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[Fact(Skip = "Remove to run test")]
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public void Four_digit_number_that_is_an_armstrong_number()
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{
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Assert.True(ArmstrongNumbers.IsArmstrongNumber(9474));
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}
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[Fact(Skip = "Remove to run test")]
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public void Four_digit_number_that_is_not_an_armstrong_number()
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{
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Assert.False(ArmstrongNumbers.IsArmstrongNumber(9475));
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}
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[Fact(Skip = "Remove to run test")]
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public void Seven_digit_number_that_is_an_armstrong_number()
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{
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Assert.True(ArmstrongNumbers.IsArmstrongNumber(9926315));
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}
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[Fact(Skip = "Remove to run test")]
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public void Seven_digit_number_that_is_not_an_armstrong_number()
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{
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Assert.False(ArmstrongNumbers.IsArmstrongNumber(9926314));
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}
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}

‎exercises/armstrong-numbers/Example.cs

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using System;
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public static class ArmstrongNumbers
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{
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public static bool IsArmstrongNumber(int number)
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{
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var numString = number.ToString();
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var length = numString.Length;
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double total = 0;
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for (int i = 0; i < length; i++)
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{
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total += Math.Pow(int.Parse(numString[i].ToString()), length);
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}
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return number == (int)total;
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}
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}

‎exercises/armstrong-numbers/README.md

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An [Armstrong number](https://en.wikipedia.org/wiki/Narcissistic_number) is a number that is the sum of its own digits each raised to the power of the number of digits.
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For example:
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- 9 is an Armstrong number, because `9 = 9^1 = 9`
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- 10 is *not* an Armstrong number, because `10 != 1^2 + 0^2 = 2`
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- 153 is an Armstrong number, because: `153 = 1^3 + 5^3 + 3^3 = 1 + 125 + 27 = 153`
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- 154 is *not* an Armstrong number, because: `154 != 1^3 + 5^3 + 4^3 = 1 + 125 + 64 = 190`
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Write some code to determine whether a number is an Armstrong number.

‎exercises/bob/BobTest.cs

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// This file was auto-generated based on version 1.0.0 of the canonical data.
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// This file was auto-generated based on version 1.1.0 of the canonical data.
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using Xunit;
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[Fact(Skip = "Remove to run test")]
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public void Forceful_question()
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{
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Assert.Equal("Whoa, chill out!", Bob.Response("WHAT THE HELL WERE YOU THINKING?"));
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Assert.Equal("Calm down, I know what I'm doing!", Bob.Response("WHAT THE HELL WERE YOU THINKING?"));
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}
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[Fact(Skip = "Remove to run test")]

‎exercises/bob/Example.cs

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{
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if (IsSilence(statement))
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return "Fine. Be that way!";
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if (IsYelling(statement) && IsQuestion(statement))
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return "Calm down, I know what I'm doing!";
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if (IsYelling(statement))
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return "Whoa, chill out!";
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if (IsQuestion(statement))

‎exercises/book-store/BookStoreTest.cs

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// This file was auto-generated based on version 1.0.1 of the canonical data.
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// This file was auto-generated based on version 1.1.0 of the canonical data.
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using Xunit;
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var basket = new[] { 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 1, 2 };
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Assert.Equal(75.2, BookStore.Total(basket));
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}
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[Fact(Skip = "Remove to run test")]
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public void Four_groups_of_four_are_cheaper_than_two_groups_each_of_five_and_three()
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{
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var basket = new[] { 1, 1, 2, 2, 3, 3, 4, 5, 1, 1, 2, 2, 3, 3, 4, 5 };
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Assert.Equal(102.4, BookStore.Total(basket));
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}
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}

‎exercises/rna-transcription/RnaTranscriptionTest.cs

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// This file was auto-generated based on version 1.0.1 of the canonical data.
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// This file was auto-generated based on version 1.1.0 of the canonical data.
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using Xunit;
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using System;
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public class RnaTranscriptionTest
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{
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{
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Assert.Equal("UGCACCAGAAUU", RnaTranscription.ToRna("ACGTGGTCTTAA"));
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}
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[Fact(Skip = "Remove to run test")]
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public void Correctly_handles_invalid_input_rna_instead_of_dna_()
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{
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Assert.Throws<ArgumentException>(() => RnaTranscription.ToRna("U"));
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}
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[Fact(Skip = "Remove to run test")]
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public void Correctly_handles_completely_invalid_dna_input()
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{
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Assert.Throws<ArgumentException>(() => RnaTranscription.ToRna("XXX"));
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}
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[Fact(Skip = "Remove to run test")]
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public void Correctly_handles_partially_invalid_dna_input()
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{
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Assert.Throws<ArgumentException>(() => RnaTranscription.ToRna("ACGTXXXCTTAA"));
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}
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}

‎exercises/word-count/WordCountTest.cs

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};
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Assert.Equal(expected, actual);
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}
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[Fact(Skip = "Remove to run test")]
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public void Multiple_spaces_not_detected_as_a_word()
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{
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var actual = WordCount.Countwords(" multiple whitespaces");
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var expected = new Dictionary<string, int>
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{
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["multiple"] = 1,
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["whitespaces"] = 1
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};
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Assert.Equal(expected, actual);
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}
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}

‎generators/Exercises/ArmstrongNumbers.cs

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namespace Generators.Exercises
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{
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public class ArmstrongNumbers : GeneratorExercise
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{
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}
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}

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