write a C program to swap the values of two variables Using pointers

Question :- Using pointers, write a C program to swap the values of two variables.

#include <stdio.h>

#include<conio.h>

 

void main()

{

   int first_value, second_value, *first_pointer, *second_pointer, temp;

 

   printf("Enter the value of First Value and Second Value\n");

   scanf("%d%d", &first_value, &second_value);

 

   printf("Before Swapping\nfirst_value = %d\nsecond_value = %d\n", first_value, second_value);

 

   first_pointer = &first_value;

   second_pointer = &second_value;

 

   temp = *second_pointer;

   *second_pointer = *first_pointer;

   *first_pointer = temp;

 

   printf("After Swapping\nfirst_value = %d\nsecond_value = %d\n", first_value, second_value);

 

   getch();

}

write a C program to swap the values of two variables Using pointers

•  int first_value, second_value, *first_pointer, *second_pointer, temp; it's declare variable two variable first_value and second_value it using to input a value by user or defined  two pointer variable  *first_pointer and *second_pointer it using swaping value using pointer and last variable defined temp is empty value.
•  printf("Enter the value of First Value and Second Value\n"); print a message.
•  scanf("%d%d", &first_value, &second_value); it is get a value by user %d is a using int data type and & sign using for address of memory block , &first_value is store in memoey , &second_value is store a value in memory block.
• printf("Before Swapping\nfirst_value = %d\n second_value = %d\n", first_value, second_value); print a message to understand the user next step show in this message.
• first_pointer = &first_value; it's assign a address of storing memory block in first pointer.
• second_pointer = &second_value; it's assign  address of storing memory block in second pointer.
• temp = *second_pointer; temp is empty variable then assign a value of storing value in second pointer into temp variable.
•   *second_pointer = *first_pointer; after assign second pointer into temp  then second pointer is empty then assign value in first pointer into second pointer then empty first pointer.
• then first pointer is empty then temp assign a value in first pointer