C program to swap two numbers without using third variable [3 techniques]

In this article, we have demonstrated multiple approaches to swap two numbers without using a third temporary variable.

Table of contents:

Problem statement: Swap two numbersApproach 1: Using + and -Approach 2: Using * and /Approach 3: Using XORProblem statement: Swap two numbers

The problem is to swap the numerical values in two variables without a third variable. The most common approach is as follows:

Get 2 variables to be swapped: var1 and var2Create a new temporary variable var3Sto...