Optimal Xor Set

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### Read problem statements in [Vietnamese](https://www.codechef.com/download/translated/JUNE21/vietnamese/OPTSET.pdf), Find $K$ distinct numbers in the range $[1, N]$ such that the bitwise XOR of all the numbers is maximized. Print **any** set of these numbers that maximize the XOR. ###Input - The first line contains an integer $T$, the number of test cases. Then the test cases follow.

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solution.cppC++17

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