Write a C Program to Swap Number without Using Temporary Variables?

#include <stdio.h>

int main()

{

double firstNumber, secondNumber;

printf("Enter first number: ");

scanf("%lf", &firstNumber);

printf("Enter second number: ");

scanf("%lf",&secondNumber); // Swapping process

firstNumber = firstNumber - secondNumber;

secondNumber = firstNumber + secondNumber;

firstNumber = secondNumber - firstNumber;

printf("After swapping, First Number = %.2lf\n", firstNumber);

printf("After swapping, Second Number = %.2lf", secondNumber);

return 0;

}

Output:

Enter first number: 10.25

Enter second number: -12.5

After swapping, First Number = -12.50

After swapping, Second Number = 10.25

Related Topic: Write a C Program to Swap Numbers Using Temporary Variable?

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