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  2. Comparison sort - Wikipedia

    en.wikipedia.org/wiki/Comparison_sort

    Sorting a set of unlabelled weights by weight using only a balance scale requires a comparison sort algorithm. A comparison sort is a type of sorting algorithm that only reads the list elements through a single abstract comparison operation (often a "less than or equal to" operator or a three-way comparison) that determines which of two elements should occur first in the final sorted list.

  3. Three-way comparison - Wikipedia

    en.wikipedia.org/wiki/Three-way_comparison

    In C, the functions strcmp and memcmp perform a three-way comparison between strings and memory buffers, respectively. They return a negative number when the first argument is lexicographically smaller than the second, zero when the arguments are equal, and a positive number otherwise.

  4. Knapsack problem - Wikipedia

    en.wikipedia.org/wiki/Knapsack_problem

    [1] The subset sum problem is a special case of the decision and 0-1 problems where each kind of item, the weight equals the value: =. In the field of cryptography, the term knapsack problem is often used to refer specifically to the subset sum problem. The subset sum problem is one of Karp's 21 NP-complete problems.

  5. Lookup table - Wikipedia

    en.wikipedia.org/wiki/Lookup_table

    These values can either be hard-wired, as in an ASIC whose purpose is specific to a function, or provided by D latches which allow for configurable values. ( ROM , EPROM , EEPROM , or RAM .) An n -bit LUT can encode any n -input Boolean function by storing the truth table of the function in the LUT.

  6. Python (programming language) - Wikipedia

    en.wikipedia.org/wiki/Python_(programming_language)

    Since 7 October 2024, Python 3.13 is the latest stable release, and it and, for few more months, 3.12 are the only releases with active support including for bug fixes (as opposed to just for security) and Python 3.9, [55] is the oldest supported version of Python (albeit in the 'security support' phase), due to Python 3.8 reaching end-of-life.

  7. Compare-and-swap - Wikipedia

    en.wikipedia.org/wiki/Compare-and-swap

    In computer science, compare-and-swap (CAS) is an atomic instruction used in multithreading to achieve synchronization.It compares the contents of a memory location with a given value and, only if they are the same, modifies the contents of that memory location to a new given value.

  8. Object-oriented programming - Wikipedia

    en.wikipedia.org/wiki/Object-oriented_programming

    Fields defining the data values that form messages, such as their length, code point and data values. Objects and collections of objects similar to what would be found in a Smalltalk program for messages and parameters. Managers similar to IBM i Objects, such as a directory to files and files consisting of metadata and records. Managers ...

  9. Algorithm - Wikipedia

    en.wikipedia.org/wiki/Algorithm

    Flowchart of using successive subtractions to find the greatest common divisor of number r and s. In mathematics and computer science, an algorithm (/ ˈ æ l ɡ ə r ɪ ð əm / ⓘ) is a finite sequence of mathematically rigorous instructions, typically used to solve a class of specific problems or to perform a computation. [1]