Write a c program to perform Swapping on two number

Swap two number

C program to swapping two number

In this program, you will show how to write a program to swapping on two numbers. Swapping means to interchanging. For example, if in your C program you have taken two variables c and d. Where c = 25 and d = 35, then before swapping c = 25, d = 35, after swapping c = 35, d = 25. 

Swapping of two number in C program

#include <stdio.h>

int main()

{

  int c, d, t;

  printf("Enter Two Integers\n");

  scanf("%d%d", &c, &d);

  printf("Before Swapping\n First Integer = %d\n Second Integer = %d\n", c, d);

  t = c;

  c = d;

  d = t;

  printf("After Swapping\n First Integer = %d\n Second Integer = %d\n", c, d);

  return 0;

}

Output of Program:

Swapping Program

Swapping  two number without third variable

You can also be swapping two numbers without using the third variable. In that case, you will be as follows the C program:

#include <stdio.h>

int main()

{

   int c, d;

   

   printf("Enter Two Integer Number:\n");

   

   scanf("%d%d", &c, &d);

   

   c = c + d;

   d = c - d;

   c = c - d;

   printf("c = %d\n d = %d\n ",c,d);

   return 0;

}

Output of Program:

Swap Without Third Variable

Swap two numbers using pointers variable

In this program, you can also swap two numbers using the pointer variable. You will follow the C program.

#include <stdio.h>

int main()

{

   int x, y, *a, *b, temp;

   printf("Enter the value of x and y\n");

   scanf("%d%d", &x, &y);

   printf("Before Swapping\n x = %d\n y = %d\n", x, y);

   

   a = &x;

   b = &y;

   

   temp = *b;

   *b   = *a;

   *a   = temp;

   printf("After Swapping\n x = %d\n y = %d\n", x, y);

   

   return 0;

}

Output of Program:

Swapping two number using pointers