Write a test program that prompts the user to enter an index

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Reference no: EM131017595

(Fibonacci numbers) Rewrite the fib method in Listing 18.2 using iterations. Hint: To compute fib(n) without recursion, you need to obtain fib(n - 2) and fib(n - 1) first. Let f0 and f1 denote the two previous Fibonacci numbers. The current Fibonacci number would then be f0 + f1. The algorithm can be described as follows:

f0 = 0; // For fib(0) f1 = 1; // For fib(1)
for (int i = 1; i <= n;=""> { currentFib = f0 + f1;
f0 = f1;
f1 = currentFib;
}
// After the loop, currentFib is fib(n)

Write a test program that prompts the user to enter an index and displays its Fibonacci number.

Reference no: EM131017595

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