# Algorithm Puzzles: Fibonacci Number

Algorithm Puzzles ~~everyday~~ ~~every week~~ sometimes: Fibonacci Number

## Puzzle

Puzzle from leetcode:

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.

## Solution

1 | class Solution { |

T.C.: `O(N)`