c#排序算法

来源:互联网 发布:二选一数据选择器应用 编辑:程序博客网 时间:2024/05/29 17:48

//选择排序   
class SelectionSorter   
{   
    private int min;   
    public void Sort(int[] arr)   
     {   
        for (int i = 0; i < arr.Length - 1; ++i)   
         {   
             min = i;   
            for (int j = i + 1; j < arr.Length; ++j)   
             {   
                if (arr[j] < arr[min])   
                     min = j;   
             }   
            int t = arr[min];   
             arr[min] = arr[i];   
             arr[i] = 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 < arr.Length) && (!done))//判断长度   
         {   
             done = true;   
            for (i = 0; i < arr.Length - j; i++)   
             {   
                if (arr[i] > arr[i + 1])   
                 {   
                     done = false;   
                     temp = arr[i];   
                     arr[i] = 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 <= low)   
            return;   
        else if (high == low + 1)   
         {   
            if (list[low] > list[high])   
                 swap(ref list[low], ref list[high]);   
            return;   
         }   
         mid = (low + high) >> 1;   
         pivot = list[mid];   
         swap(ref list[low], ref list[mid]);   
         l = low + 1;   
         r = high;   
        do  
         {   
            while (l <= r && list[l] < pivot)   
                 l++;   
            while (list[r] >= pivot)   
                 r--;   
            if (l < r)   
                 swap(ref list[l], ref list[r]);   
         } while (l < r);   
         list[low] = list[r];   
         list[r] = pivot;   
        if (low + 1 < r)   
             Sort(list, low, r - 1);   
        if (r + 1 < 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 <= 13; m++)   
             Console.WriteLine("{0}", iArrary[m]);   
     }   
}   
//插入排序   
public class InsertionSorter   
{   
    public void Sort(int[] arr)   
     {   
        for (int i = 1; i < arr.Length; i++)   
         {   
            int t = arr[i];   
            int j = i;   
            while ((j > 0) && (arr[j - 1] > 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 <= arr.Length / 9; inc = 3 * inc + 1) ;   
        for (; inc > 0; inc /= 3)   
         {   
            for (int i = inc + 1; i <= arr.Length; i += inc)   
             {   
                int t = arr[i - 1];   
                int j = i;   
                while ((j > inc) && (arr[j - inc - 1] > 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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