Broadcom Interview Question: How to swap the values in 2 variables without using a temporary variable.

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How to swap the values in 2 variables without using a temporary variable.

Anonymous

Mar 17, 2010

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

Anonymous

Jul 10, 2011

but it should say swap two integers! because this XOR won't work with float for example

Anonymous

Jul 15, 2011

This works for floats: a = a+b b = a-b a = a-b But you might overflow on a+b.

Anonymous

Dec 12, 2014

push and pop the values from the stack.

Anonymous

Jul 23, 2017

While using the XOR method, add condition to check if numbers are same. If they are same, XOR results in 0.