Accommodation

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There are many people who come to Quark and enjoy their 3 days to the fullest. But people need some accommodation to stay. BITS has $N$ X $M$ unit space for accommodation. People can request for a rectangular space. If some or no part of the space is already booked by someone then the person gets the remaining space of his request else he gets nothing. The request is in the form of 4 integers $r1

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solution.cppC++17

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