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  2. XOR linked list - Wikipedia

    en.wikipedia.org/wiki/XOR_linked_list

    The XOR operation cancels addr(B) appearing twice in the equation and all we are left with is the addr(D). To start traversing the list in either direction from some point, the address of two consecutive items is required. If the addresses of the two consecutive items are reversed, list traversal will occur in the opposite direction. [1]

  3. Floyd's triangle - Wikipedia

    en.wikipedia.org/wiki/Floyd's_triangle

    The numbers along the left edge of the triangle are the lazy caterer's sequence and the numbers along the right edge are the triangular numbers. The n th row sums to n ( n 2 + 1)/2 , the constant of an n × n magic square (sequence A006003 in the OEIS ).

  4. Tree (abstract data type) - Wikipedia

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

    Inheritance of DNA among species by evolution, of source code by software projects (e.g. Linux distribution timeline), of designs in various types of cars, etc. The contents of hierarchical namespaces; JSON and YAML documents can be thought of as trees, but are typically represented by nested lists and dictionaries.

  5. Binary search tree - Wikipedia

    en.wikipedia.org/wiki/Binary_search_tree

    Fig. 1: A binary search tree of size 9 and depth 3, with 8 at the root. In computer science, a binary search tree (BST), also called an ordered or sorted binary tree, is a rooted binary tree data structure with the key of each internal node being greater than all the keys in the respective node's left subtree and less than the ones in its right subtree.

  6. Binary search - Wikipedia

    en.wikipedia.org/wiki/Binary_search

    Binary search Visualization of the binary search algorithm where 7 is the target value Class Search algorithm Data structure Array Worst-case performance O (log n) Best-case performance O (1) Average performance O (log n) Worst-case space complexity O (1) Optimal Yes In computer science, binary search, also known as half-interval search, logarithmic search, or binary chop, is a search ...

  7. IBM Machine Code Printer Control Characters - Wikipedia

    en.wikipedia.org/wiki/IBM_Machine_Code_Printer...

    By convention the position on a sheet of paper where the first print line has to be written is associated with Channel 1. For example, if the first line of text has to always be on physical line 3 for a given form, then the channel 1 hole has to be punched in line 3 of the carriage control tape.

  8. k-way merge algorithm - Wikipedia

    en.wikipedia.org/wiki/K-way_merge_algorithm

    1: Leaf 1 (overall winner) is replaced by 9, the next element from the input list. 2: Replaying the game 9 vs 7 (previous loser). 7 wins because it is smaller. Therefore, 7 is promoted to the top while 9 is saved in the node. 3: Replaying the game 7 vs 3 (previous loser). 3 wins because it is smaller.

  9. Subset sum problem - Wikipedia

    en.wikipedia.org/wiki/Subset_sum_problem

    sort U i in ascending order make L empty let y be the smallest element of U i add y to L for each element z of U i in increasing order do // Trim the list by eliminating numbers close to one another // and throw out elements greater than the target sum T. if y + ε T/n < z ≤ T then y = z add z to L return the largest element in L.