Update README.md

README.md

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 This repository contains the content of the courses I took during my studies at Lappeenranta-Lahti University of Technology LUT (Finnish: Lappeenrannan-Lahden teknillinen yliopisto LUT). Each course is organized into its own folder and includes the lecture notes, assignments, solutions, projects, papers, and other materials I used during the course.
 
-## Note
-
-- Please note that these materials are for reference purposes only and should not be used to cheat on assignments or exams.
-- The solutions provided are not guaranteed to be correct or complete, use them at your own risk.
-  
 ## Disclaimer
 
+- The materials provided in this repository are for reference purposes only and should not be used to cheat on assignments or exams.
 - The materials provided in this repository are for educational purposes only and not for commercial use.
-- The contents of this repository are not affiliated with my university and are solely my own work.
+- The solutions provided in this repository are not guaranteed to be correct or complete, use them at your own risk.
+- The solutions provided in this repository are solely my own work.
+
+## How did I figure out xxx?
+
+A lot of time and effort was spent on researching and experimenting. Check out the folder _Supporting materials_ for some tools I used during my studies.
 
 ## Contact
 

Supporting materials/README.md

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 <https://web.stanford.edu/class/cs103/tools/truth-table-tool/>
 
+## Visualising data structures and algorithms through animation
+
+<https://visualgo.net/en>
+
+## Algorithm visualizer
+
+<https://algorithm-visualizer.org/>
+
 ## Tools for Learning Artificial Intelligence
 
 <http://www.aispace.org/index.shtml>
 
+## Coding assistant
+
+<https://github.com/features/copilot>
+
 ## Books
 
 You can find solution manuals for the textbooks from the internet, or send me an email.