快速排序:
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class QuickSortSample
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{
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CommonFunctions<int> _funcs = new CommonFunctions<int>();
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public void Sort(int[] values, int begin, int end)
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{
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if (begin < end)
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{
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int p = Partition(values, begin, end);
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Sort(values, begin, p - 1);
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Sort(values, p + 1, end);
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}
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}
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public int Partition(int[] values, int begin, int end)
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{
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int i = begin - 1;
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for (int j = begin; j < end ; j++)
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{
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if (values[j] < values[end])
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{
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i++;
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_funcs.ExchangValues(ref values[j], ref values[i]);
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}
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}
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i++;
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_funcs.ExchangValues(ref values[i], ref values[end]);
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return i;
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}
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static void Main()
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{
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int[] values = {4, 3, 7, 5, 8, 9, 0, 1, 2, 6 };
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QuickSortSample quickSort = new QuickSortSample();
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quickSort.Sort(values, 0, values.Length - 1);
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foreach (int i in values)
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{
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Console.Write(i + " ");
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}
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}
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}
class QuickSortSample2
{3
CommonFunctions<int> _funcs = new CommonFunctions<int>();4

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public void Sort(int[] values, int begin, int end)6
{7
if (begin < end)8
{9
int p = Partition(values, begin, end);10

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Sort(values, begin, p - 1);12
Sort(values, p + 1, end);13
}14
}15

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public int Partition(int[] values, int begin, int end)17
{18
int i = begin - 1;19
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for (int j = begin; j < end ; j++)21
{22
if (values[j] < values[end])23
{24
i++;25
_funcs.ExchangValues(ref values[j], ref values[i]);26
}27
}28

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i++;30
_funcs.ExchangValues(ref values[i], ref values[end]);31

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return i;33
}34

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static void Main()36
{37
int[] values = {4, 3, 7, 5, 8, 9, 0, 1, 2, 6 };38

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QuickSortSample quickSort = new QuickSortSample();40
quickSort.Sort(values, 0, values.Length - 1);41

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foreach (int i in values)43
{44
Console.Write(i + " ");45
}46
}47
}


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