On Mon, Jul 11, 2011 at 1:51 AM, aanchal goyal <[email protected]>wrote:
> These are the various ways to swap 2 variables
> a) Using temporary Variable
>
always inefficient. using extra memory.
> b) Usnig some Arithmentic operation
>
works for all numbers even floating points
a and b are two no. to swap : a=a+b;
b=a-b;
a=a-b;
always works
> c) Using bitwise XOR operation
>
since bitwise results an error in floating point numbers so this method
also fails.
hence (b) is better among the three.what say ?
>
>
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best wishes!!
Vaibhav Shukla
DU-MCA
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