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Now, since we have been given queries, we can simply precompute all the possible subsets along with their bitcount modulo 2, and perform the required calculations as mentioned above for all given queries.
why do we need to do this in this problem?
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Mehta and the Typical Supermarket
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Now, since we have been given queries, we can simply precompute all the possible subsets along with their bitcount modulo 2, and perform the required calculations as mentioned above for all given queries. why do we need to do this in this problem?