Question: Use C++,thank you 3. Write an efficient iterative (i.e., loop-based) algorithm Fibonacci(n) that returns the nth Fibonacci number. Your algorithm may only use a constant
Use C++,thank you

3. Write an efficient iterative (i.e., loop-based) algorithm Fibonacci(n) that returns the nth Fibonacci number. Your algorithm may only use a constant amount of memory (i.e., no auxiliary array). Argue that the running time T(n) of the algorithm is linear in n, i.e. T(n) Son for some constant c
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