大家都很熟悉用
java或
c实现经典排序算法，下面就用
C#实现各种排序，具体代码见下面示例。
选择排序 class SelectionSorter
{
private int min;
public void Sort(int[] arr)
{
for (int i = 0; i %26lt; arr.Length - 1; ++i)
{
min = i;
for (int j = i + 1; j %26lt; arr.Length; ++j)
{
if (arr[j] %26lt; arr[min])
min = j;
}
int t = arr[min];
arr[min] = arr;
arr = t;
}
}
static void Main(string[] args)
{
int[] array = new int[] { 1, 5, 3, 6, 10, 55, 9, 2, 87, 12, 34, 75, 33, 47 };
SelectionSorter s = new SelectionSorter();
s.Sort(array);
foreach (int m in array)
Console.WriteLine("{0}", m);
}
}
冒泡排序 class EbullitionSorter
{
public void Sort(int[] arr)
{
int i, j, temp;
bool done = false;
j = 1;
while ((j %26lt; arr.Length) %26amp;%26amp; (!done))//判断长度
{
done = true;
for (i = 0; i %26lt; arr.Length - j; i++)
{
if (arr %26gt; arr[i + 1])
{
done = false;
temp = arr;
arr = arr[i + 1];//交换数据
arr[i + 1] = temp;
}
}
j++;
}
}
static void Main(string[] args)
{
int[] array = new int[] { 1, 5, 3, 6, 10, 55, 9, 2, 87, 12, 34, 75, 33, 47 };
EbullitionSorter e = new EbullitionSorter ();
e.Sort(array);
foreach (int m in array)
Console.WriteLine("{0}", m);
}
}
快速排序 class QuickSorter
{
private void swap(ref int l, ref int r)
{
int temp;
temp = l;
l = r;
r = temp;
}
public void Sort(int[] list, int low, int high)
{
int pivot;//存储分支点
int l, r;
int mid;
if (high %26lt;= low)
return;
else if (high == low + 1)
{
if (list[low] %26gt; list[high])
swap(ref list[low], ref list[high]);
return;
}
mid = (low + high) %26gt;%26gt; 1;
pivot = list[mid];
swap(ref list[low], ref list[mid]);
l = low + 1;
r = high;
do
{
while (l %26lt;= r %26amp;%26amp; list[l] %26lt; pivot)
l++;
while (list[r] %26gt;= pivot)
r--;
if (l %26lt; r)
swap(ref list[l], ref list[r]);
} while (l %26lt; r);
list[low] = list[r];
list[r] = pivot;
if (low + 1 %26lt; r)
Sort(list, low, r - 1);
if (r + 1 %26lt; high)
Sort(list, r + 1, high);
}
static void Main(string[] args)
{
int[] iArrary = new int[] { 1, 5, 3, 6, 10, 55, 9, 2, 87, 12, 34, 75, 33, 47 };
QuickSorter q = new QuickSorter();
q.Sort(iArrary, 0, 13);
for (int m = 0; m %26lt;= 13; m++)
Console.WriteLine("{0}", iArrary[m]);
}
}
插入排序 public class InsertionSorter
{
public void Sort(int[] arr)
{
for (int i = 1; i %26lt; arr.Length; i++)
{
int t = arr;
int j = i;
while ((j %26gt; 0) %26amp;%26amp; (arr[j - 1] %26gt; t))
{
arr[j] = arr[j - 1];//交换顺序
--j;
}
arr[j] = t;
}
}
static void Main(string[] args)
{
int[] array = new int[] { 1, 5, 3, 6, 10, 55, 9, 2, 87, 12, 34, 75, 33, 47 };
InsertionSorter i = new InsertionSorter();
i.Sort(array);
foreach (int m in array)
Console.WriteLine("{0}", m);
}
}
希尔排序 public class ShellSorter
{
public void Sort(int[] arr)
{
int inc;
for (inc = 1; inc %26lt;= arr.Length / 9; inc = 3 * inc + 1) ;
for (; inc %26gt; 0; inc /= 3)
{
for (int i = inc + 1; i %26lt;= arr.Length; i += inc)
{
int t = arr[i - 1];
int j = i;
while ((j %26gt; inc) %26amp;%26amp; (arr[j - inc - 1] %26gt; t))
{
arr[j - 1] = arr[j - inc - 1];//交换数据
j -= inc;
}
arr[j - 1] = t;
}
}
}
static void Main(string[] args)
{
int[] array = new int[] { 1, 5, 3, 6, 10, 55, 9, 2, 87, 12, 34, 75, 33, 47 };
ShellSorter s = new ShellSorter();
s.Sort(array);
foreach (int m in array)
Console.WriteLine("{0}", m);
}
}
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