INTERESTING PROBLEM SET!

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Vaibhav and Hitik are preparing the problem set for the upcoming round of ZCO. They have a bank of n problems, and they want to select any non-empty subset of it as a problem set. k experienced teams are participating in the contest. Some of these teams already know some of the problems. To make the contest interesting for them, each of the teams should know at most half of the selected problems.

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solution.cppC++17

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