Despite I am big fan of bitsets, I don't even know what is the exact time complexity. I think operation OR, XOR and etc. works in
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, the explanation is that solutions which used it got AC. But on the other hand, I have read in blogs that there would beUnable to parse markup [type=CF_MATHJAX]
instead of $$$64$$$. Please help me, what is the exact time complexity for each function and which factors it depends on and explain work principles.