Python/data_structures/suffix_tree/suffix_tree_node.py

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Implemented Suffix Tree Data Structure (#11554) * Implemented KD-Tree Data Structure * Implemented KD-Tree Data Structure. updated DIRECTORY.md. * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Create __init__.py * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Replaced legacy `np.random.rand` call with `np.random.Generator` in kd_tree/example_usage.py * Replaced legacy `np.random.rand` call with `np.random.Generator` in kd_tree/hypercube_points.py * added typehints and docstrings * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * docstring for search() * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Added tests. Updated docstrings/typehints * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * updated tests and used | for type annotations * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * E501 for build_kdtree.py, hypercube_points.py, nearest_neighbour_search.py * I001 for example_usage.py and test_kdtree.py * I001 for example_usage.py and test_kdtree.py * Update data_structures/kd_tree/build_kdtree.py Co-authored-by: Christian Clauss <cclauss@me.com> * Update data_structures/kd_tree/example/hypercube_points.py Co-authored-by: Christian Clauss <cclauss@me.com> * Update data_structures/kd_tree/example/hypercube_points.py Co-authored-by: Christian Clauss <cclauss@me.com> * Added new test cases requested in Review. Refactored the test_build_kdtree() to include various checks. * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Considered ruff errors * Considered ruff errors * Apply suggestions from code review * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Update kd_node.py * imported annotations from __future__ * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Implementation of the suffix tree data structure * Adding data to DIRECTORY.md * Minor file renaming * minor correction * renaming in DIRECTORY.md * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Considering ruff part-1 * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Considering ruff part-2 * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Considering ruff part-3 * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Considering ruff part-4 * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Considering ruff part-5 * Implemented Suffix Tree Data Structure. Added some comments to my files in #11532, #11554. * updating DIRECTORY.md * Implemented Suffix Tree Data Structure. Added some comments to my files in #11532, #11554. --------- Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: Christian Clauss <cclauss@me.com> Co-authored-by: Ramy-Badr-Ahmed <Ramy-Badr-Ahmed@users.noreply.github.com>
2024-09-28 13:37:00 +00:00
# Created by: Ramy-Badr-Ahmed (https://github.com/Ramy-Badr-Ahmed)
# in Pull Request: #11554
# https://github.com/TheAlgorithms/Python/pull/11554
#
# Please mention me (@Ramy-Badr-Ahmed) in any issue or pull request
# addressing bugs/corrections to this file.
# Thank you!
from __future__ import annotations
class SuffixTreeNode:
def __init__(
self,
children: dict[str, SuffixTreeNode] | None = None,
is_end_of_string: bool = False,
start: int | None = None,
end: int | None = None,
suffix_link: SuffixTreeNode | None = None,
) -> None:
"""
Initializes a suffix tree node.
Parameters:
children (dict[str, SuffixTreeNode] | None): The children of this node.
is_end_of_string (bool): Indicates if this node represents
the end of a string.
start (int | None): The start index of the suffix in the text.
end (int | None): The end index of the suffix in the text.
suffix_link (SuffixTreeNode | None): Link to another suffix tree node.
"""
self.children = children or {}
self.is_end_of_string = is_end_of_string
self.start = start
self.end = end
self.suffix_link = suffix_link