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  2. Python syntax and semantics - Wikipedia

    en.wikipedia.org/wiki/Python_syntax_and_semantics

    Python sets are very much like mathematical sets, and support operations like set intersection and union. Python also features a frozenset class for immutable sets, see Collection types. Dictionaries (class dict) are mutable mappings tying keys and corresponding values. Python has special syntax to create dictionaries ({key: value})

  3. Python (programming language) - Wikipedia

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

    Python is a high-level, general-purpose programming language. Its design philosophy emphasizes code readability with the use of significant indentation. [33] Python is dynamically type-checked and garbage-collected. It supports multiple programming paradigms, including structured (particularly procedural), object-oriented and functional ...

  4. Double turnstile - Wikipedia

    en.wikipedia.org/wiki/Double_turnstile

    The double turnstile is a binary relation. It has several different meanings in different contexts: To show semantic consequence, with a set of sentences on the left and a single sentence on the right, to denote that if every sentence on the left is true, the sentence on the right must be true, e.g. .

  5. Double dispatch - Wikipedia

    en.wikipedia.org/wiki/Double_dispatch

    The problem is that, while virtual functions are dispatched dynamically in C++, function overloading is done statically. The problem described above can be resolved by simulating double dispatch, for example by using a visitor pattern. Suppose the existing code is extended so that both SpaceShip and ApolloSpacecraft are given the function

  6. Competitive programming - Wikipedia

    en.wikipedia.org/wiki/Competitive_programming

    Irrespective of the problem category, the process of solving a problem can be divided into two broad steps: constructing an efficient algorithm, and implementing the algorithm in a suitable programming language (the set of programming languages allowed varies from contest to contest). These are the two most commonly tested skills in programming ...

  7. Multiple inheritance - Wikipedia

    en.wikipedia.org/wiki/Multiple_inheritance

    The "diamond problem" (sometimes referred to as the "Deadly Diamond of Death" [6]) is an ambiguity that arises when two classes B and C inherit from A, and class D inherits from both B and C. If there is a method in A that B and C have overridden , and D does not override it, then which version of the method does D inherit: that of B, or that of C?

  8. Indirection - Wikipedia

    en.wikipedia.org/wiki/Indirection

    In computer programming, an indirection (also called a reference) is a way of referring to something using a name, reference, or container instead of the value itself.The most common form of indirection is the act of manipulating a value through its memory address.

  9. Learning with errors - Wikipedia

    en.wikipedia.org/wiki/Learning_with_errors

    The LWE problem described above is the search version of the problem. In the decision version ( DLWE ), the goal is to distinguish between noisy inner products and uniformly random samples from Z q n × T {\displaystyle \mathbb {Z} _{q}^{n}\times \mathbb {T} } (practically, some discretized version of it).