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Algorithm 1.7 (nth Fibonacci Term, Iterative) is clearly linear in n, but is it a linear-time algorithm? In Section 1.3.1 we defined the input size as the size of the input. In the case of the nth Fibonacci term, n is the input, and the number of bits it takes to encode n could be used as the input size. Using this measure, the size of 64 is lg 64 = 6, and the size of 1,024 is lg 1,024 10. Show that Algorithm 1.7 is exponential-time in terms of its input size. Show further that any algorithm for computing the nth Fibonacci term must be an exponential-time algorithm because the size of the output is exponential in the input size