Question: Assume that the cost to multiply a n-bit integer with a m-bit integer is O(nm). Given integers x and y with n-bits and m-bits, respectively,

Assume that the cost to multiply a n-bit integer with a m-bit integer is O(nm). Given integers x and y with n-bits and m-bits, respectively, give an efficient algorithm to compute x^y. Show that the method is correct, and analyze its running time.

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