What are some good questions on Bitwise operations?

I am weak in bitwise operations, so I want to practice questions related to bitwise operations & shifting.

I know these questions:
If anyone knows more , please add. Thanks.

Try out this question https://code.google.com/codejam/contest/3214486/dashboard
U will love it :slight_smile:

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directly from spoj classifier http://problemclassifier.appspot.com/?keywords=bit&user=

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