WAP in C to Swap Two Numbers Without Using Temporary Variables?

#include<stdio.h>
#include<conio.h>
int main()
{
double a,b;
clrscr();
printf(“Enter first number: “);
scanf(“%lf”, &a);
printf(“Enter second number: “);
scanf(“%lf”,&b);
// Swapping process
a=a-b;
b=a+b;
a=b-a;
printf(“\nAfter swapping firstNumber = %.2lf\n”,a);
printf(“After swapping secondNumber = %.2lf”,b);
getch();
return(0);
}

Output :-

dfd

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