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Commits on Mar 13, 2026

• Merge pull request #2739 from keon/fix/security-crypto-eval

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• Merge pull request #2740 from keon/fix/bfs-deque-bellman-heap

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• Merge pull request #2741 from keon/fix/structural-cleanup

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• Merge pull request #2742 from keon/fix/treenode-dedup-falsy-zero

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• Merge pull request #2743 from keon/fix/add-ds-tests-readme

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• Fix AVL in_order_traverse crash and remove duplicate tests

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• Fix max_height.py deque-to-list type mismatch crash

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• Fix iterative extended GCD and correct pypi-publish SHA

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Commits on Mar 12, 2026

• Fix ruff I001: sort imports in construct_tree_postorder_preorder.py

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• Fix ruff lint: Optional → X | None, sort imports, wrap long docstring

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• Fix ruff E501: shorten long deque initialization line in path_sum2.py

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• Fix ruff E501: wrap long docstring line in rsa.py

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• Fix falsy-zero bug in BST validation, deduplicate TreeNode definitions

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• Structural cleanup: remove empty dirs, rewrite bst.py, fix test bug

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• Fix BFS O(n²) regression, bellman_ford sink nodes, heap invariant bugs

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• Fix security issues: remove eval(), use secrets for crypto, pin CI actions

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Commits on Feb 20, 2026

• Ensured passing ruff lint check

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Commits on Feb 19, 2026

• Add docstrings to VEBTree

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• Add vEB tree file and README entry

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• Add van Emde Boas tree implementation and tests

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Commits on Feb 17, 2026

• Resolve open issues: new algorithms, bug fix, and uncommented tests

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• Add 15 community-contributed algorithms with tests

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• Fix all 737 ruff lint errors with strict rules restored

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• Fix CI: build backend, linter config, and lint errors

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• Complete repo restructuring: Phases 6-11

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• Merge bfs/ and dfs/ into graph/ — techniques, not categories

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• Rename packages: sort→sorting, search→searching, dp→dynamic_programming, maths→math, linkedlist→linked_list, queues→queue

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• Rename packages: arrays→array, strings→string, bit→bit_manipulation, backtrack→backtracking

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• Create algorithms/data_structures/ package with core DS implementations

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• Remove niche/orphan modules: automata, ml, distribution, unix

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• Modernize codebase: type hints, docstrings, explicit imports, and CI update

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• Add topological sort and test cases (#2716)

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Commits on Jan 26, 2026

• improvements

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Commits on Jan 20, 2026

• Add distance between two points algorithm (#2714)

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Commits on Jan 6, 2026

• Add first cyclic node detection in linked list (#2707)

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