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* feat: Binary tree node sum (#7020)
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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
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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
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* # type: ignore
* # type: ignore
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* ,
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add more test
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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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fixed pre-commit fails
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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`.
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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
* Update has_duplicate_data.py
* Update has_duplicate_data.py
* Update and rename has_duplicate_data.py to has_loop.py
* Update has_loop.py
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* Create alternate_disjoint_set.py
This code implements a disjoint set using Lists
with added heuristics for efficiency
Union by Rank Heuristic and Path Compression
* Update alternate_disjoint_set.py
Added typehints, doctests and some suggested variable name change
* Update alternate_disjoint_set.py
* Formatted with Black
* More formatting
* Formatting on line 28
* Error in Doctest
* Doctest Update in alternate disjoint set
* Fixed build error
* Fixed doctest
* fixes: #2172
* fixes: #2172
* Added docstrings and type of parameters
* fixed error
* Added type hints
* made changes
* removed capital letters from function name
* Added type hints
* fixed bulid error
* modified comments
* fixed build error
* adding static type checking to basic_binary_tree.py
* Add static type checking to functions with None return type
* Applying code review comments
* Added missing import statement
* fix spaciing
* "cleaned up depth_of_tree"
* Add doctests and then streamline display() and is_full_binary_tree()
* added static typing to lazy_segment_tree.py
* added missing import statement
* modified variable names for left and right elements
* added static typing to lowest_common_ancestor.py
* fixed formatting
* modified files to meet style guidelines, edited docstrings and added some doctests
* added and fixed doctests in lazy_segment_tree.py
* fixed errors in doctests
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* created dijkstra's two stack algorithm
* Made changes to dijkstras two stack algorithm for documentation and
testing purposes.
* Made changes to dijkstras two stack algorithm for documentation and
testing purposes.
* Fixed Grammar Mistake
* Added Explanation Reference
* Imported stack instead of using my own
Changed a few minor things.
* Imported stack instead of using my own
Changed a few minor things.
* Update data_structures/stacks/dijkstras_two_stack_algorithm.py
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* Update dijkstras_two_stack_algorithm.py
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* adding static type checking to basic_binary_tree.py
* Add static type checking to functions with None return type
* Applying code review comments
* Added missing import statement
* fix spaciing
* "cleaned up depth_of_tree"
* Add doctests and then streamline display() and is_full_binary_tree()
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* Fix doubly linked list algorithm
* Fix bug with insert_at_tail method
Create __str__() method for Node class and LinkedList class
* Simplify __str__() of LinkedList
Returns empty string if there are no elements in the list
* Fix description
* Update __init__.py
please add a function to get length of linked list
* Update __init__.py
* Update doubly_linked_list.py
all size function lo doubly linked list class
* prime number _better method
* comments
* Updated init.py 2
made it more pythonic
* updated length function
* commnet in linked_list construtor
* Update data_structures/linked_list/__init__.py
accepecting changes
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* Update data_structures/linked_list/__init__.py
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* Update __init__.py
* Revert changes to doubly_linked_list.py
* Revert changes to prime_check.py
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* Tighten up psf/black and flake8
* Fix some tests
* Fix some E741
* Fix some E741
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* Precision must be a nonnegative integer
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* added __len__ function
Added a function to count number of nodes in linked list
* Updated __len__ method
used snake_case instead of camel case
* Add tests to __len__()
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* Fix psf/black issues than fail the build
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* enhanced segment tree implementation and more pythonic
enhanced segment tree implementation and more pythonic
* add doctests for segment tree
* add type annotations
* unified processing sum min max segment tre
* delete source encoding in segment tree
* use a generator function instead of returning
* add doctests for methods
* add doctests for methods
* add doctests
* fix doctest
* fix doctest
* fix doctest
* fix function parameter and fix determine conditions
