This implementation of Fibonacci is easy to understand but very slow:Following implementation of Fibonacci is hard to understand but super fast. It calculates 100,000th Fibonacci number instantly on my laptop.
I'm trying to solve Fibonacci using java, but my code takes so long with big numbers.Problem Description Task. Given an integer 𝑛, find the last digit of the 𝑛th Fibonacci number 𝐹𝑛 (that is, 𝐹𝑛 mod 10).
I've been researching and benchmarking various Fibonacci algorithms recently for my own amusement and more or less by accident came up with an alternate implementation of the classic O(n) time and O(1) space dynamic programming implementation.