By | 23.12.2016

# Swap Two Numbers without using third variable

Write a C++ Program to Swap Two Numbers without using third variable. C++ Program to Swap Two Numbers without  third variable. Here’s simple Program to Swap Two Numbers without using temp variable in C++ Programming Language.

Here is source code of the C++ Program to Swap Two Numbers without using third variable. The C++ program is successfully compiled and run(on Codeblocks) on a Windows system. The program output is also shown in below.

## SOURCE CODE : :

```/*  C++ Program to Swap Two Numbers without using third variable  */

#include <iostream>
using namespace std;

int main()
{

int a,b ;

cout<<"Enter 1st number :: ";
cin>>a;
cout<<"\nEnter 2nd number :: ";
cin>>b;

cout << "\nBefore swapping, Numbers are :: " << endl;
cout << "\n\ta = " << a << ", b = " << b << endl;

a = a + b;
b = a - b;
a = a - b;

cout << "\nAfter swapping, Numbers are :: " << endl;
cout << "\n\ta = " << a << ", b = " << b << endl;

return 0;
}```

### Output : :

```/*  C++ Program to Swap Two Numbers without using third variable  */

Enter 1st number :: 5

Enter 2nd number :: 9

Before swapping, Numbers are ::

a = 5, b = 9

After swapping, Numbers are ::

a = 9, b = 5

Process returned 0```

Above is the source code for C++ Program to Swap Two Numbers without using third variable which is successfully compiled and run on Windows System.The Output of the program is shown above .

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Category: Basic Programs C++ Programming

My name is Tunde Ajetomobi, a Tech Enthusiast and Growth Hacker. I enjoy creating helpful content that solves problem across different topics. Codezclub is my way of helping young aspiring programmers and students to hone their skills and find solutions on fundamental programming languages.

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Thank you for these examples. My first was learning Commodore Basic “by doing”!

I solved it with this code
#include <iostream>
using namespace std;
int main()
{
short a, b;
cout << “The Values before Swap\n”;
cout << “Please enter the value of a\n”;
cin >> a;
cout << “Please enter the value of b\n”;
cin >> b;
cout << “The Values After the Swap\n”;
swap(a,b);
cout << “a = ” << a << endl;
cout << “b = ” << b << endl;
return 0;
}
Am i wrong?

your code absolutely right but in this (“”); you can try it.

Your code is more easier than that one