Question: Improve the algorithm fib from the text so that it requires only O(n) space ALGORITHM Fib INPUT: A non negative integer n OUTPUT: the nth

Improve the algorithm fib from the text so that it requires only O(n) space

ALGORITHM Fib

INPUT: A non negative integer n

OUTPUT: the nth Fibonacci number

if n =< return n

else return F(n -1) + F(n-2)

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