Swapping program in C without using any temporary variable

Learn about Swapping program in C without using any temporary variable in the below code example. Also refer the comments in the code snippet to get a detailed view about what’s actually happening.

Swapping program in C without using any temporary variable

The below C program swaps the given variables without using third variable. The swapping is done thorugh simple addition and subtraction logic.

Program:

#include<stdio.h>
int main()
{
    int a=10, b=20;

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

    printf("a=%d \t b=%d\n",a,b);
    return 0;
}

Output:

a=20 b=10

Hope above code works for you and Refer the below Related Codes to gain more insights. Happy coding and come back again.