How can we swap two

Anjali · #1 (**permalink**) 04-02-2008, 11:44 AM

How can we swap two values without using a temporary?

rakgenius · #2 (**permalink**) 04-27-2008, 02:34 PM

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

anonymouskk · #3 (**permalink**) 04-28-2008, 07:42 AM

a=a*b;
b=a/b;
a=a/b;

anonymouskk · #4 (**permalink**) 04-28-2008, 07:44 AM

Quote:

Originally Posted by rakgenius

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

sorry dude, this doesnt work, it shud be
a=a+b;
b=a-b;
a=a-b;

karthikpmk · #5 (**permalink**) 05-29-2008, 09:35 AM

a=a^b;
b=a^b;
a=a^b;

// ^ - XOR

sowmya_vvns · #6 (**permalink**) 08-14-2008, 11:19 AM

int a=10,b=20;

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

printf("%d %d",a,b);
this code will work fine whether a >b or a

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