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  2. Linked list - Wikipedia

    en.wikipedia.org/wiki/Linked_list

    A linked list is a sequence of nodes that contain two fields: data (an integer value here as an example) and a link to the next node. The last node is linked to a terminator used to signify the end of the list.

  3. Concatenation - Wikipedia

    en.wikipedia.org/wiki/Concatenation

    In formal language theory and pattern matching (including regular expressions), the concatenation operation on strings is generalised to an operation on sets of strings as follows: For two sets of strings S 1 and S 2 , the concatenation S 1 S 2 consists of all strings of the form vw where v is a string from S 1 and w is a string from S 2 , or ...

  4. Persistent data structure - Wikipedia

    en.wikipedia.org/wiki/Persistent_data_structure

    xs = [0, 1, 2] ys = [3, 4, 5] These would be represented in memory by: where a circle indicates a node in the list (the arrow out representing the second element of the node which is a pointer to another node). Now concatenating the two lists: zs = xs ++ ys results in the following memory structure:

  5. Dataframe - Wikipedia

    en.wikipedia.org/wiki/Dataframe

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file

  6. Stack (abstract data type) - Wikipedia

    en.wikipedia.org/wiki/Stack_(abstract_data_type)

    A stack can be easily implemented either through an array or a linked list, as it is merely a special case of a list. [19] In either case, what identifies the data structure as a stack is not the implementation but the interface: the user is only allowed to pop or push items onto the array or linked list, with few other helper operations.

  7. Set (abstract data type) - Wikipedia

    en.wikipedia.org/wiki/Set_(abstract_data_type)

    enumerate(S): returns a list containing the elements of S in some arbitrary order. build(x 1,x 2,…,x n,): creates a set structure with values x 1,x 2,...,x n. create_from(collection): creates a new set structure containing all the elements of the given collection or all the elements returned by the given iterator.

  8. Disjoint-set data structure - Wikipedia

    en.wikipedia.org/wiki/Disjoint-set_data_structure

    Also, from the bound above on the number of buckets, we have T 2 = O(mlog * n). For T 3, suppose we are traversing an edge from u to v, where u and v have rank in the bucket [B, 2 B − 1] and v is not the root (at the time of this traversing, otherwise the traversal would be accounted for in T 1).

  9. List of types of sets - Wikipedia

    en.wikipedia.org/wiki/List_of_types_of_sets

    Download QR code; Print/export Download as PDF ... List of set identities and relations – Equalities for combinations of sets; List of types of functions This page ...