asp.net c排序方法

asp教程.net c排序方法

namespace quicksort
{
class quicksort
{
public static void sort(int[] array)
{
dosort(array,0, array.length-1);
}
private static void dosort( int[] array, int start, int end)
{
if( start < end)
{
int temp = partition(array, start, end);
dosort(array, start, temp-1);
dosort(array, temp + 1, end);
}
}
private static int partition(int[] array,int start, int end)
{
int index = start - 1;
for( var i=start; i< end; i++)
{
if( array[i] < array[end])
{
index++;
swap(array, index, i);
}
}
swap(array, index +1, end);
return index + 1;
}
private static void swap(int[] array, int index1, int index2)
{
var temp = array[index1];
array[index1] = array[index2];
array[index2] = temp;
}
}
}

国外的一款c 排序方法

#include <stdlib.h>
#include <stdio.h>

#define num_items 100

void quicksort(int numbers[], int array_size);
void q_sort(int numbers[], int left, int right);

int numbers[num_items];

int main()
{
int i;

//seed random number generator
srand(getpid());

//fill array with random integers
for (i = 0; i < num_items; i++)
    numbers[i] = rand();

//perform quick sort on array
quicksort(numbers, num_items);

printf("done with sort.n");
for (i = 0; i < num_items; i++)
    printf("%in", numbers[i]);
}

void quicksort(int numbers[], int array_size)
{
q_sort(numbers, 0, array_size - 1);
}

void q_sort(int numbers[], int left, int right)
{
int pivot, l_hold, r_hold;

l_hold = left;
r_hold = right;
pivot = numbers[left];
while (left < right)
{
    while ((numbers[right] >= pivot) && (left < right))
      right--;
    if (left != right)
    {
      numbers[left] = numbers[right];
      left++;
    }
    while ((numbers[left] <= pivot) && (left < right))
      left++;
    if (left != right)
    {
      numbers[right] = numbers[left];
      right--;
    }
}
numbers[left] = pivot;
pivot = left;
left = l_hold;
right = r_hold;
if (left < pivot)
    q_sort(numbers, left, pivot-1);
if (right > pivot)
    q_sort(numbers, pivot+1, right);
}

补充：asp.net教程,C语言