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1. Commits on Oct 6, 2026

   • Add Fenwick tree implementation and tests (#7637)

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     Rohan45create

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2. Commits on Oct 4, 2026

   • fix: preserve KDTree deletion traversal and split invariants (#7633)

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     tianrking

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3. Commits on Aug 16, 2026

   • fix: off-by-one bounds guards in SegmentTree (#7573)

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     SEPURI-SAI-KRISHNA

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4. Commits on Jun 20, 2026

   • chore: move HeavyLightDecomposition to datastructures/trees (#7485)

     priyanshuvishwakarma273403

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5. Commits on May 15, 2026

   • [ENHANCEMENT] Add Wavelet Tree Data Structure (#7414)

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     space0032

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     DenizAltunkapan

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6. Commits on Apr 6, 2026

   • Feat/segment tree 2d (#7363)

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     YassaTalaat80

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7. Commits on Jan 20, 2026

   • style: include `UTAO_JUNIT_ASSERTION_ODDITIES_USE_ASSERT_NULL` (#7225)

     vil02

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8. Commits on Dec 14, 2025

   • feat: Binary Tree to String algorithm added (Leetcode 606) (#6727)

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     mjk22071998

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9. Commits on Dec 1, 2025

   • Added threaded binary tree (#6995)

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     Shewale41

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10. Commits on Nov 22, 2025

    • Feature/centroid decomposition (#7086)

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      saikirankanakala

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11. Commits on Oct 8, 2025

    • Added Pretty Display method and BSTRecursiveGenericTests.java (#6621)

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12. Commits on May 28, 2025

    • Add BTree implementation (#6248)

      skamble2

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      2320b46View commit details

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13. Commits on Oct 29, 2024

    • Enhance docs, add tests in AVLTree (#6058)

      Hardvan

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      b31bc86View commit details

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14. Commits on Oct 27, 2024

    • Add Longest Subarray With Sum Less Than or Equal to K algorithm (#6042)

      Chiefpatwal

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    • Add tests for NodeStack (#6009)

      lorduke22

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      a2e526bView commit details

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15. Commits on Oct 12, 2024

    • Add `QuadTree` data structure (#5681)

      sailok

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16. Commits on Oct 9, 2024

    • Add boundary traversal of binary tree (#5639)

      xuyang471

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17. Commits on Oct 7, 2024

    • Enhance Trie data structure with added methods and tests (#5538)

      sailok

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18. Commits on Oct 6, 2024

    • Add treap class (#5563)

      ShreeHarish

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      4008e49View commit details

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19. Commits on Oct 5, 2024

    • Improve `TrieImp.java` comments & enhance readability (#5526)

      Hardvan

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20. Commits on Sep 1, 2024

    • Add SplayTree (#5142)

      sozelfist

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      a5b083cView commit details

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21. Commits on Jun 13, 2024

    • style: enable `NeedBraces` in checkstyle (#5227)

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      samuelfac

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      Samuel Facchinello

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      87b17e0View commit details

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22. Commits on May 8, 2024

    • style: enable `HideUtilityClassConstructor` in checkstyle (#5147)

      vil02

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23. Commits on May 5, 2024

    • style: enable `AvoidStarImport` in checkstyle (#5141)

      vil02

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      414835dView commit details

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24. Commits on Jun 26, 2023

    • Refactor BinaryTreeIsBalanced algorithm (#4222)

      albina-astr

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25. Commits on Jun 9, 2023

    • Add automatic linter (#4214)

      acbin

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    • style: format code (#4212)

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      acbin

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26. Commits on May 14, 2023

    • Refactor CreateBinaryTreeFromInorderPreorder (#4190)

      albina-astr

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27. Commits on May 6, 2023

    • Cover BSTRecursive with tests (#4180)

      albina-astr

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28. Commits on Apr 24, 2023

    • Remove redundant code and add tests for BSTIterative (#4164)

      albina-astr

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29. Commits on Apr 22, 2023

    • Refactor BSTFromSortedArray (#4162)

      albina-astr

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30. Commits on Mar 5, 2023

    • Increase test coverage (fixes #3895 #3896) (#3897)

      a-kbd

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31. Commits on Feb 27, 2023

    • Add postorder binary tree traversal (#3899)

      albina-astr

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      3499c1bView commit details

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32. Commits on Feb 25, 2023

    • Add inorder binary tree traversal (#3898)

      albina-astr

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33. Commits on Feb 17, 2023

    • Valid BST: refactoring + added unit test (#3883)

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      albina-astr

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      Debasish Biswas

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      541f490View commit details

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