Rotate array.
He asked to propose any solution first, and then optimise it.

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Rotate array. 
He asked to propose any solution first, and then optimise it.

Anonimo · Accepted Answer

I said I have encountered this question and know the optimal solution with O(n) time and O(1) space. He asked to explain solution and then code it. 
	Once I completed - he asked to do unit test and say few test cases - I did it.

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