The Fibonacci sequence is a series of numbers where each number in the sequence is the sum of the preceding two numbers, starting with 0 and 1. It is natural to consider a recursive function to calculate a subset of the Fibonacci sequence, but this may not be the most efficient mechanism.
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It can be very useful to check the execution time of a group of swift statements or swift function when evaluating the most efficient way to perform a task. In this article three different mechanisms are used to measure the execution time to sum up 1000 random numbers.
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