# C++ Program to Swap Two Numbers without using Third Variable1 min read

In this tutorial, we will write a program to swap numbers without using a temporary variable in C++. . There are two ways to swap variables.

1. Using + and
2. Using * and /

Let us go through each of them with a C program. You may check out the following program.

Both of the programs take the user input for two integers and swap those two values in two separate ways without using a temporary variable.

## C++ Program to Swap Two Numbers without using Third Variable

### 1. Using + and –

Output:

`Enter the first number: 10Enter the second number: 20Result after Swapping Two Numbers:num1: 20num2: 10`

### 2. Using * and /

Output:

`Enter the first number: 5Enter the second number: 10Result after Swapping Two Numbers:num1: 10num2: 5`

Note that the swapping using / and * will not work if one of the swapping values is zero (0).

You may go through the following program in C++:

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