@AnupKumarPanwar @ParthS007 @poyea Could I please get a quick review on this one because I made a mistake here that breaks the build for new pull requests.
* Added matrix exponentiation approach for finding fibonacci number.
* Implemented the way of finding nth fibonacci.
* Complexity is about O(log(n)*8)
* Updated the matrix exponentiation approach of finding nth fibonacci.
- Removed some extra spaces
- Added the complexity of bruteforce algorithm
- Removed unused function called zerro()
- Added some docktest based on request
* Updated the matrix exponentiation approach of finding nth fibonacci.
- Removed some extra spaces
- Added the complexity of bruteforce algorithm
- Removed unused function called zerro()
- Added some docktest based on request
* Tighten up main() and add comments on performance
