---
title: "11-sets-maps-trees"
tags: 
- cosc201
- lecture
sr-due: 2022-09-10
sr-interval: 99
sr-ease: 270
---

A [set](notes/set.md) is :: a collection of elements with no repetition allowed <!--SR:!2022-5-527,9,250-->

A [hash-map](notes/hash-map.md) is :: a set of key value pairs <!--SR:!2022-5-526,8,250-->

A [tree](notes/tree.md) is :: a general concept of a way of organising data. <!--SR:!2022-5-528,10,250-->
