Swap or interchange two numbers without using variable.

//Program to swap or interchange two numbers without using variable.
#include<stdio.h>
#include<conio.h>
main()
{
 int a=10, b=20;
 clrscr();
 printf("\n Before interchange the value is: a=%d, b=%d",a,b);
 a=a+b;
 b=a-b;
 a=a-b;
 printf("\n After interchange the value is: a=%d, b=%d",a,b);
 getch();
}

Posted in: C Programs

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