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Arguments Passing Techniques C++ is the mother of Object-Oriented Programming. Arguments Passing is a Process of transferring data between the calling function and the called function. In C++,  there are three ways by which arguments can be passed. Pass By Value Pass By Address or Pass By Pointer Pass By Reference Video Explanation:  C++ Program to swap two numbers with the third variable.     https://youtu.be/pq9VWQswqwo Video:  Call By Value Most of the programming languages like C use only the first two modules (i.e., Passing by Value and Address) whereas C++ supports all the three methods of passing arguments. Pass By Value: It is a default method for argument passing. When an argument is passed by value than a copy of the argument is made and passed to the newly created formal arguments in the called function. The formal arguments contain a copy of actual arguments which is stored in the separate memory location.   ...