## Relevant articles: - [Java Two Pointer Technique](https://www.baeldung.com/java-two-pointer-technique) - [Implementing Simple State Machines with Java Enums](https://www.baeldung.com/java-enum-simple-state-machine) - [Converting Between Roman and Arabic Numerals in Java](http://www.baeldung.com/java-convert-roman-arabic) - [Practical Java Examples of the Big O Notation](http://www.baeldung.com/java-algorithm-complexity) - [Checking If a List Is Sorted in Java](https://www.baeldung.com/java-check-if-list-sorted) - [Checking if a Java Graph has a Cycle](https://www.baeldung.com/java-graph-has-a-cycle) - [A Guide to the Folding Technique](https://www.baeldung.com/folding-hashing-technique)