3537. Fill a Special Grid

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You are given a non-negative integer n representing a 2n x 2n grid. You must fill the grid with integers from 0 to 22n - 1 to make it special. A grid is special if it satisfies all the following conditions: - All numbers in the top-right quadrant are smaller than those in the bottom-right quadrant. - All numbers in the bottom-right quadrant are smaller than those in the bottom-left quadrant. -

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solution.cppC++17

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