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Inversion Sorting

CSESInteractive ProblemsOpen on judge ↗

There is a hidden permutation a_1, a_2,\dots, a_n of integers 1, 2,\dots, n. Your task is to sort the permutation by reversing subarrays. On each turn, you can reverse a subarray of the permutation. After that, you will be reported the number of inversions in the permutation. If the number of inversions is 0 (i.e., the permutation is sorted), you win. Interaction This is an interactive problem.

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L1 Observation
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L5 Full solution
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solution.cppC++17

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