LeetCode Fibonacci Number Solution Explained - Java

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[ethanscottt]

God bless you nick for always finding the best time complexity

[RichardRajah]

i liked you rant towards the end... and i feel the same

[LazyShady]

Well, its 2021. I had this question in my intreview.

[majone]

If you aren't doing functions and recursions as a beginner how would you implement fib n-1 and n-2?

[juliuscecilia]

Is the first sum = a +b necessary (before the while loop)?