程序：冒泡排序

#include<stdio.h>
void bubble_sort(int arr[], int sz)
{
  int a = 0;
  for (a = 0; a < sz - 1; a++)
  {
    int b = 0;
    for (b = 0; b < sz - 1 - a; b++)
    {
      if (arr[b] >= arr[b + 1])
      {
        int c = arr[b];
        arr[b] = arr[b + 1];
        arr[b + 1] = c;
      }
    }
  }
}
int main()
{
  int i = 0;
  int arr[] = { 10,9,8,7,6,5,4,3,2,1 };
  int sz = sizeof(arr) / sizeof(arr[0]);
  bubble_sort(arr, sz);
  for (i = 0; i <= sz-1; i++)
  {
    printf("%d  ", arr[i]);
  }
  return 0;
}