Question: Given an array of n elements, give a linear-time algorithm to rotate the string k positions. That is, if the array contains a0, a1, ,

Given an array of n elements, give a linear-time algorithm to rotate the string k positions. That is, if the array contains a0, a1, …, an1 , the rotated array is ak, ak+1, …, an-1, a0, …, ak1. Use at most a constant amount of extra memory. Hint : Reverse three subarrays.

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