How to swap two numbers in C++ Language ?

Introduction: In my previous article I explained What is C++ Language ? Calculate sum of two numbers in C++ Language  and Swapping two numbers without using temporary variable and Another way to Swap two numbers without using temporary variable .
Now in this article I have explained How to swap/interchange two numbers/values in C++ Language. Swapping of two numbers in C++ is not a difficult task.

Implementation: Let's create a vary basic  program to swap two number.

#include<iostream.h>
#include<conio.h>
void main()
{
 clrscr();
 int a,b,temp;
 cout<<"Enter first number= ";
 cin>>a;
 cout<<"Enter second number= ";
 cin>>b;
 cout<<"\nValue of first number before swapping= "<<a;
 cout<<"\nValue of second number before swapping= "<<b;
 temp=a;
 a=b;
 b=temp;
 cout<<"\nValue of first number after swapping= "<<a;
 cout<<"\nValue of second number after swapping= "<<b;
 getch();
 }

Run the program using ctrl+F9

Output:
Enter first number= 20
Enter second number= 50

Value of first number before swapping= 20
Value of second number before swapping= 50
Value of first number after swapping= 50
Value of second number after swapping= 20

Now over to you:
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