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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 Sep 6, 2026

   • feat: add SlidingWindowAggregator, a ring buffer with windowed aggregation (#7591)

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     alxkm

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4. Commits on Aug 21, 2026

   • feat(datastructures): add SelfOrganizingLinkedList implementation and tests (#7575)

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     iamcodinghere22

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     DenizAltunkapan

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5. 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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6. Commits on Jul 28, 2026

   • Add rotting oranges (#7542)

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     rsemwal1711

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7. Commits on Jun 24, 2026

   • refactor: review and group scattered palindrome implementation (#7487)

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     priyanshuvishwakarma273403

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8. Commits on Jun 23, 2026

   • refactor: unify Dijkstra on efficient PriorityQueue implementation (#7486)

     priyanshuvishwakarma273403

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9. Commits on Jun 20, 2026

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

     priyanshuvishwakarma273403

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10. Commits on Jun 3, 2026

    • test: refactor MergeSortedArrayListTest using JUnit 5 parameterized tests (#7445)

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      sawaleparas

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      parassawale

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11. Commits on May 25, 2026

    • feat(datastructures): add thread-safe bounded queue implementation (#7428)

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      MD-Mushfiqur123

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12. Commits on May 21, 2026

    • chore(deps): bump org.junit:junit-bom from 6.0.3 to 6.1.0 (#7431)

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      dependabot[bot]

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      vil02

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13. 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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14. Commits on Apr 6, 2026

    • Feat/segment tree 2d (#7363)

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      YassaTalaat80

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15. Commits on Mar 11, 2026

    • test: enhance GenericHashMapUsingArrayTest with comprehensive edge case coverage (#7300)

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      lmj798

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16. Commits on Feb 23, 2026

    • Add ReverseQueueRecursion.java: Reverse a Queue using recursion (#7281)

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      Vasundhara117

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17. Commits on Feb 18, 2026

    • feat: add contains() method to DynamicArray (#7270)

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      Neha-2005-VCE

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      DenizAltunkapan

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18. Commits on Jan 24, 2026

    • style: include `UTAO_JUNIT_ASSERTION_ODDITIES_ACTUAL_CONSTANT` (#7239)

      vil02

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19. Commits on Jan 21, 2026

    • style: include `UTAO_JUNIT_ASSERTION_ODDITIES_USE_ASSERT_NOT_NULL` (#7226)

      vil02

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20. Commits on Jan 20, 2026

    • style: include `UTAO_JUNIT_ASSERTION_ODDITIES_USE_ASSERT_NULL` (#7225)

      vil02

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21. Commits on Jan 16, 2026

    • Add Middle of Linked List (Slow/Fast Pointers) (#7212)

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      GziXnine

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22. Commits on Dec 27, 2025

    • Add Immutable HashMap implementation (#7183)

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      koushik-sai

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      Koushik Sai

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23. Commits on Dec 14, 2025

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

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      mjk22071998

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24. Commits on Dec 10, 2025

    • Add unit tests for graph algorithms (#7133) (#7156)

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      LucasAHorn

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      prashantdubeypng

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25. Commits on Dec 1, 2025

    • Added threaded binary tree (#6995)

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      Shewale41

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26. Commits on Nov 22, 2025

    • Feature/centroid decomposition (#7086)

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      saikirankanakala

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27. Commits on Nov 16, 2025

    • feat: add IndexedPriorityQueue implementation and tests (#7062)

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      SeungHyeokYoon

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28. Commits on Nov 5, 2025

    • chore: fix typos in src/test/java/com/thealgorithms/datastructures (#7045)

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      Lê Nam Khánh

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29. Commits on Oct 14, 2025

    • [FEAT] Implement Flattening MultiLevel LinkedList (#6670)

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      Priyanshu1303d

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      Priyanshu1303d

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    • Add TortoiseHareAlgo implementation with append, toString, and getMiddle methods (#6722)

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      TejasSingh022

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      DenizAltunkapan

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30. Commits on Oct 12, 2025

    • feat: added TwoSat solutions with Tests, also updated Directory.md (#6756)

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      Shoyeb45

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      alxkm

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    • [FEAT] Implement Dials Algorithm (Graph) (#6679)

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      Priyanshu1303d

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      Priyanshu1303d

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31. Commits on Oct 8, 2025

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

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32. Commits on Oct 1, 2025

    • Added Circular Doubly Linked List in the datastructures section (#6565)

      richk21

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33. Commits on Sep 3, 2025

    • Added-> DisjointUnion Set by Size (#6514)

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      TIWARIPRIYANSH

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      DenizAltunkapan

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