How To Swap Two Numbers Without Using Third Variable in C Programming | C Programming Examples - 12

How To Swap Two Numbers Without Using 3rd Variable in C Programming | C Programming Examples - 12

Write a C program to Swap Two Numbers Without Using Third Variable. How to Swap Two Numbers Without Using Third Variable in C programming. Logic to Swap Two Numbers Without Using Third Variable in C programming.

This is a very simple program for beginners to understand how swapping works and how to Swap Two Numbers Without Using Third Variable in c programming language. 

C Programming Examples:

1. Write a C Program to Swap Two Numbers Without Using Third Variable

2. C program to Swap Two Numbers Without Using 3rd Variable

3. How to Swap Two Numbers Without Using Third Variable in C Programming

C Program to Swap Two Numbers Without Using Third Variable :

#include<stdio.h>

int main()

{

  int a,b;

  printf("Enter a\n");

  scanf("%d",&a);

  printf("Enter b\n");

  scanf("%d",&b);

  printf("The values of a is %d

       and b is %d before swaping\n",a,b);

  a=a+b;

  b=a-b;

  a=a-b;

  printf("The values of a is %d

       and b is %d after swaping\n",a,b);

}

Output: 

Enter a

30

Enter b

35

The values of a is 30 and b is 35 before swaping

The values of a is 35 and b is 30 after swaping

Explanation of Swapping Two Numbers Without Using Third Variable in C Programming :

Here we initialized a,b,c

a---> for storing 1st number

b--->for storing second number

Now here goes the logic(let us take a=1 and b=3)

a=a+b, Therefore, a=1+3=4

b=a-b, Therefore b=4-3=1

a=a-b, Therefore a=4-1=3

Now the values of a and b are 3 and 1

The values of a and are printed.

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