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https://www.codechef.com/START38C/problems/ABITEZ
its alittle obvious in A ^ B , A&B doesnt appear , in A|B it appears once and in A + B it appears twice
actually a+b = a|b + a&b
edit : its not obvious as a fact , i just meant proving it
cool, I needed the proof
cool
You should submit this to bashkort's blog
Yes, it deserves a gold medal not silver.
Thank you for your observant blog post.
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