Xor Queries

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Given an initially empty integer array (1-indexed) and some queries: - Type 0: Add the integer number x at the end of the array. - Type 1: On the interval L..R find a number y, to maximize (x xor y). - Type 2: Delete last k numbers in the array - Type 3: On the interval L..R, count the number of integers less than or equal to x. - Type 4: On the interval L..R, find the kth smallest integer (k

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solution.cppC++17

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