learning.txt

https://medium.com/python-features/understanding-if-name-main-in-python-a37a3d4ab0c3#:~:text=The%20value%20of%20__name,when%20the%20module%20is%20imported.

https://www.geeksforgeeks.org/python-get-a-list-as-input-from-user/

https://www.geeksforgeeks.org/python-programming-language/

Exception handling
https://www.geeksforgeeks.org/python-set-5-exception-handling/

File handling
https://www.geeksforgeeks.org/file-handling-python/


__name__ == "__main__"
https://stackoverflow.com/questions/419163/what-does-if-name-main-do

merge sort, heap sort, quick sort
Time complexity


https://docs.aws.amazon.com/AmazonS3/latest/dev/UsingBucket.html


https://extendsclass.com/python-tester.html

Array vs lists 

https://www.programiz.com/python-programming/array


Data structure and algorithms 
https://www.tutorialspoint.com/python_data_structure/index.htm