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* feat: Implement binary tree path sum (#7135)
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* feat: Binary tree node sum (#7020)
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* Binary Search Tree Inorder Traversal v2
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* Add typing
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* Enhance fenwick_tree.py
* Change update to add in fenwick_tree.py
* Some changes
* Fix bug
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* change `List` to `list`
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* MAINT: Used f-string method
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* [mypy] Fix type annotations for binary tree traversals in data structures
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* Remove prints inside functions and return lists
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* Updated Pop function
Added underflow condition
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* StackUnderflowError
* ..., not ....
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* fix: fix mypy errors
Update binary_search_tree `arr` argument to be typed as a list
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This is a followup to https://github.com/TheAlgorithms/Python/pull/4973#issuecomment-933117382
As per given suggestion, I've added type hints to certain methods that don't have them. I have also added documentation and example doctests as a usage example for (most of) those that don't have them.
I have also added another test case following the previous test case's format. I noticed that the existing test case from previous pull request might be redundant with the ones I've made, so I decided to create a specific situation where the linked list would have to keep different kinds of data types for each node, in `test_singly_linked_list_2` test function.
Some minor changes in strings has been done to keep things consistent with other parts of the document. If it is undesirable, please let me know.
* Added the matrix_exponentiation.py file in maths directory
* Implemented the requested changes
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* add new line at end of file
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* fix isort issue
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* fix variable names in wavelet_tree and correct typo
* Add type hints and variable renaming
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Add doctests to placate the algorithm-bot, thanks to @cclauss.
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* Move doctest to individual functions and reformat code
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* # type: ignore
* # type: ignore
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* Create evaluate_postfix_notations.py
Adding in the evaluate postfix notation using Stacks
one of the common use with simple stack question
creating a new file for the data structure of stacks
* Create evaluate_postfix_notations.py
Adding in the evaluate postfix notation using Stacks
one of the common use with simple stack question
creating a new file for the data structure of stacks
* Delete evaluate_postfix_notations.py
* Evaluate postfix expression stack clean approach
Sending in the PR again as the Previous request failed in pre commit
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Made changes as suggested by @cclauss
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fixing pre-commit fails
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Deleted trailing white spaces causing pre-commits to fail
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* chore: update print_reverse helper method
Use a generator expression instead of slicing
`elements_list` to improve the space and time complexity
of `make_linked_list` to O(1) space and O(n) time
by avoiding the creation a shallow copy of `elements_list`.
* fix: add type checking and argument typing
Add argument typing to all methods in `print_reverse`
Add doctest to helper function `make_linked_list` and
basic edge case tests to `print_reverse`
* test: add `print_reverse` test
Fix doctest syntax and remove edge case tests that are covered
by typed arguments.
Add `print_reverse` test that expects the correct values are printed
out by adding a `test_print_reverse_output` helper function.
* format code
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* added an algorithm which checks a linked list for loops and returns true if one is found
* added doctests and clarified meaning of loop
* Define Node.__iter__()
* Update and rename has_loop.py to has_duplicate_data.py
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* Update and rename has_duplicate_data.py to has_loop.py
* Update has_loop.py
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