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2. The n-th Fibonacci number F, is defined recursively as Fn-Fn-1 + Fn-2, where F0-0 and F-1 A naive recursive algorithm for solving this problem
2. The n-th Fibonacci number F, is defined recursively as Fn-Fn-1 + Fn-2, where F0-0 and F-1 A naive recursive algorithm for solving this problem is given by REC-FIB (n) if n-0 then return 0 else if n-1 then return 1 else return (REC-FIB(n-1) REC-FIB (n-2)) (a) Give a tight asymptotic bound on the worst-case running time of this recursive algorithm. (Hint.: Draw the recursive calls tree and count the number of subproblems that will appear on it.) (b) Show how to use dynamic programming to devise an O(n) algorithm for computing the n-th Fibonnacci number
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