# Tree Maps * This could be used as a hashmap with date ranges * see [here](https://stackoverflow.com/questions/15372954/hashmap-with-date-ranges) and [here](https://stackoverflow.com/questions/6886294/python-2-6-treemap-sorteddictionary) --- Date: 20211004 Links to: Tags: #todo References: * [What is a tree map in java](https://www.baeldung.com/java-treemap)