Added Data Structures and Algorithms to the cheatsheet (#7724)

* Updated Cheatsheet for Data Structures and Algorithms

* Update free-programming-cheatsheets.md

* Updated DSA and ordered it alphabetically

* Added Data Structures and Algorithms to the cheatsheet

* Update free-programming-cheatsheets.md

* Updated id-tag for Data Structures and Algorithms

* Updated contents alphabetically

Co-authored-by: Biswadeep Purkayastha <98874428+metabiswadeep@users.noreply.github.com>

Co-authored-by: Biswadeep Purkayastha <98874428+metabiswadeep@users.noreply.github.com>

more/free-programming-cheatsheets.md

@@ -8,6 +8,7 @@
 * [Clojure](#clojure)
 * [Dart](#dart)
 * [Data Science](#data-science)
+* [Data Structures and Algorithms](#data-structures-and-algorithms)
 * [Docker](#docker)
 * [Git](#git)
 * [Go](#go)
@@ -92,6 +93,15 @@
 * [Cheatsheets for Data Scientists](https://www.datacamp.com/community/data-science-cheatsheets) - Datacamp (PDF)
 
 
+### <a id="data-structures-and-algorithms"></a>Data Structures and Algorithms
+
+* [Algorithms and Data Structures Cheatsheet](https://algs4.cs.princeton.edu/cheatsheet/)
+* [An Executable Data Structures Cheat Sheet for Interviews](https://algodaily.com/lessons/an-executable-data-structures-cheat-sheet)
+* [Big O Notation Cheat Sheet](https://algodaily.com/lessons/big-o-notation-cheat-sheet)
+* [Data Structures and Algorithms Cheat Sheet - Cheatography](https://cheatography.com/burcuco/cheat-sheets/data-structures-and-algorithms/)
+* [Data structures and algorithms study cheatsheets for coding interviews](https://www.techinterviewhandbook.org/algorithms/study-cheatsheet/)
+
+
 ### Docker
 
 * [Docker Cheat Sheet](https://low-orbit.net/docker-cheat-sheet) - Anthony Rioux, Low Orbit Flux (HTML, PDF)