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Fibonacci Numbers

Explore how to find the nth Fibonacci number through recursive and dynamic programming methods. Learn to optimize naive recursion with memoization and bottom-up tabulation approaches. Understand time and space tradeoffs and improve your coding skills by implementing efficient Fibonacci algorithms in Python.

Statement

Fibonacci numbers are a sequence of numbers where each number is the sum of the two preceding numbers. Your task is to find the nthn^{th} Fibonacci number.

The Fibonacci sequence is defined as:

F0=0, F1=1, Fn=Fn1+Fn2, F_0 = 0,\space F_1 = 1,\space F_n = F_{n-1} + F_{n-2},\space
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