Ethiopian multiplication: Difference between revisions
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=={{header|C sharp|C#}}== |
=={{header|C sharp|C#}}== |
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Loop Version: |
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<lang csharp>static void Main(string[] args) |
<lang csharp>static void Main(string[] args) |
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{ |
{ |
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}</lang> |
}</lang> |
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Recursive Version: |
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<lang csharp> |
<lang csharp> |
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class Program |
class Program |
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static void Main ( string[ ] args ) |
static void Main ( string[ ] args ) |
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{ |
{ |
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Console.WriteLine ( |
Console.WriteLine ( "{0}{1}{2,19}", new String('-',19),Environment.NewLine,DoIt ( 17, 34 ) ); |
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} |
} |
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public static int DoIt ( int num1, int num2 ) |
public static int DoIt ( int num1, int num2 ) |
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{ |
{ |
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Console.WriteLine ( "{0,8} | {1,8}", num1, num2 ); |
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return num1 == 1 ? num2 : DoIt ( Halve ( num1 ), Double ( num2 ) ) + (IsEven ( num1 ) ? 0 : num2 ); |
return num1 == 1 ? num2 : DoIt ( Halve ( num1 ), Double ( num2 ) ) + (IsEven ( num1 ) ? 0 : num2 ); |
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} |
} |
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