C language sorts n integers with pointers pointing to pointers

C Language uses the method of pointer to pointer n Sort an integer and output ; It is required to write the sorting as a separate function ;n Enter an integer in the main function , Finally, output... In the main function . 

Their thinking ： As the reader looks at the question , First of all, observe the rules , Then the pointer pointing to the pointer has paved the way in the last exercise , Readers can contact a problem to skillfully use the pointer pointing to the pointer .

C Language source code demonstration ：

#include<stdio.h>// The header file
int main()// The main function
{
  void sort(int **point,int number); //sort Sort function declaration
  int i,number,data[20],**point,*pstr[20]; // Defining variables
  printf(" Enter the number to sort number：");// Prompt statement
  scanf("%d",&number);// Keyboard entry
  for(i=0;i<number;i++)
  {
    pstr[i]=&data[i]; // Will be the first i The address of an integer is given to the pointer array pstr Of the i Elements
  }
  printf(" Enter this one by one %d Number ：",number);// Prompt statement
  for(i=0;i<number;i++)
  {
    scanf("%d",pstr[i]);// Enter the number to sort one by one
  }
  point=pstr;
  sort(point,number);
  printf("\n-------------------\n"); // Prompt statement
  printf(" Output results ：\n");// Prompt statement
  for(i=0;i<number;i++)
  {
    printf("%d ",*pstr[i]);// Output the sorted result
  }
  printf("\n");// Line break
  return 0;// The return value of the main function is 0
}
void sort(int **point,int number)// Customize sort Sorting function
{
  int i,j,*temp;// Defining variables
  for(i=0;i<number-1;i++)
  {
    for(j=i+1;j<number;j++)
    {
      if(**(point+i)>**(point+j))// Exchange integer addresses after comparison
      {
        temp=*(point+i);
        *(point+i)=*(point+j);
        *(point+j)=temp;
      }
    }
  }
}

Compile run results ：

Enter the number to sort number：3
Enter this one by one 3 Number ：1 8 5

-------------------
Output results ：
1 5 8

--------------------------------
Process exited after 6.278 seconds with return value 0
Please press any key to continue . . .

 
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