# Big-O Notation

Useful links

* <https://tomysispblog.wordpress.com/2018/04/08/big-o-notation-merge-sort/>
* <https://github.com/raywenderlich/swift-algorithm-club/blob/master/Big-O%20Notation.markdown>
* <https://www.swiftbysundell.com/basics/time-complexity/>
