c语言将数字插入有序数组_将无序的数列14,20,5,6,7,8,11,12按降序排序

• 将无序数列降序
• 将10插入数组中

#include<stdio.h>

int main()
{
    int a[9] = {14,20,5,6,7,8,11,12};
    int temp1, temp2, number=10, end;
    int i,j,key;
    for(i=1; i<8; i++)//用个插入排序
    {
        key=a[i];
        j=i-1;
        while(j>=0&&a[j]<key)
        {
            a[j+1]=a[j];
            j--;
        }
        a[j+1]=key;
    }
    for(i = 0; i < 8; i++)
        printf("%3d", a[i]);
    printf("\n");
    end = a[7];//先考虑特殊情况虽然在这不适用
     if(number < end)//如果数字小于最小的数就直接插入到它后面
         a[8] = number;
     else
          {
             for(i = 0; i < 8; i++)
      {
         if(a[i] < number)
                 {
                 temp1 = a[i];
                 a[i] = number;
                for(j=i+1; j<9; j++)
                     {
                     temp2 = a[j];
                     a[j] = temp1;
                     temp1 = temp2;                    
                }
                 break;
            }
        }
    }
     for(i=0; i<9; i++)
         printf("%3d", a[i]);
     printf("\n");
}
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