Tag: LeetCode: 509 Fibonacci Number

The Fibonacci numbers, commonly denoted F(n) form a sequence, called the Fibonacci sequence, such that each number is the sum of the two preceding ones, starting from 0 and 1. That is: F(0) = 0, F(1) = 1 F(n) = F(n – 1) + F(n – 2), for n >…