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September 2017 Update

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Ingy döt Net 2017-09-23 10:01:46 +02:00
parent bba7bfd280
commit ba8067c3b7
14570 changed files with 153136 additions and 63871 deletions
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46
Task/Generator-Exponential/C-sharp/generator-exponential-1.cs
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using System;
using System.Collections.Generic;
using System.Linq;
namespace RosettaGenerator
{
class ClosureStyle
{
static void Main(string[] args)
{
Func<int> squaresGenerator = PowerGeneratorAsClosure(2);
Func<int> cubesGenerator = PowerGeneratorAsClosure(3);
Func<int> filter = FilterAsClosure(squaresGenerator, cubesGenerator);
foreach (int i in Enumerable.Range(0, 20))
filter();
foreach (int i in Enumerable.Range(21, 10))
Console.Write(filter() + " ");
Console.WriteLine();
}
public static Func<int> PowerGeneratorAsClosure(int exponent)
{
int x = 0;
return () => { return (int)Math.Pow(x++, exponent); };
}
public static Func<int> FilterAsClosure(Func<int> squaresGenerator, Func<int> cubesGenerator)
{
int squareValue;
int cubeValue = cubesGenerator();
return () =>
{
while (true)
{
squareValue = squaresGenerator();
while (squareValue > cubeValue)
cubeValue = cubesGenerator();
if (squareValue < cubeValue)
return squareValue;
}
};
}
}
}

46
Task/Generator-Exponential/C-sharp/generator-exponential-2.cs
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using System;
using System.Collections.Generic;
using System.Linq;
namespace RosettaGenerator
{
class ListStyle
{
static void Main(string[] args)
{
IEnumerator<int> squaresGenerator = PowerGeneratorAsList(2);
IEnumerator<int> cubesGenerator = PowerGeneratorAsList(3);
IEnumerable<int> filter = FilterAsList(squaresGenerator, cubesGenerator);
foreach (int value in filter.Skip(20).Take(10))
Console.Write(value + " ");
Console.WriteLine();
}
public static IEnumerator<int> PowerGeneratorAsList(int exponent)
{
int x = 0;
while (true)
yield return (int)Math.Pow(x++, exponent);
}
public static IEnumerable<int> FilterAsList(IEnumerator<int> squaresGenerator, IEnumerator<int> cubesGenerator)
{
int squareValue;
int cubeValue = cubesGenerator.Current;
while (true)
{
squareValue = squaresGenerator.Current;
while (squareValue > cubeValue)
{
cubesGenerator.MoveNext();
cubeValue = cubesGenerator.Current;
}
if (squareValue < cubeValue)
yield return squareValue;
squaresGenerator.MoveNext();
}
}
}
}