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  2. For loop - Wikipedia

    en.wikipedia.org/wiki/For_loop

    The loop counter is used to decide when the loop should terminate and for the program flow to continue to the next instruction after the loop. A common identifier naming convention is for the loop counter to use the variable names i, j, and k (and so on if needed), where i would be the most outer loop, j the next inner loop, etc. The reverse ...

  3. Foreach loop - Wikipedia

    en.wikipedia.org/wiki/Foreach_loop

    Most use the simple word for, ... (my_list in the example) ... in is the only kind of for loop in Python, the equivalent to the "counter" loop found in other ...

  4. Reference counting - Wikipedia

    en.wikipedia.org/wiki/Reference_counting

    When using update coalescing with an appropriate treatment of new objects, more than 99% of the counter updates are eliminated for typical Java benchmarks. Interestingly, update coalescing also eliminates the need to employ atomic operations during pointer updates in a concurrent setting, this solving reference counting issues in a concurrent ...

  5. Counting sort - Wikipedia

    en.wikipedia.org/wiki/Counting_sort

    The simplicity of the counting sort algorithm and its use of the easily parallelizable prefix sum primitive also make it usable in more fine-grained parallel algorithms. [7] As described, counting sort is not an in-place algorithm; even disregarding the count array, it needs separate input and output arrays. It is possible to modify the ...

  6. Zen of Python - Wikipedia

    en.wikipedia.org/wiki/Zen_of_Python

    An idea or piece of code which closely follows the most common idioms of the Python language, rather than implementing code using concepts common to other languages. For example, a common idiom in Python is to loop over all elements of an iterable using a for statement. Many other languages don’t have this type of construct, so people ...

  7. Control flow - Wikipedia

    en.wikipedia.org/wiki/Control_flow

    Both Python's for and while loops support such an else clause, which is executed only if early exit of the loop has not occurred. Some languages support breaking out of nested loops; in theory circles, these are called multi-level breaks. One common use example is searching a multi-dimensional table.

  8. While loop - Wikipedia

    en.wikipedia.org/wiki/While_loop

    first checks whether x is less than 5, which it is, so then the {loop body} is entered, where the printf function is run and x is incremented by 1. After completing all the statements in the loop body, the condition, (x < 5), is checked again, and the loop is executed again, this process repeating until the variable x has the value 5.

  9. Iterator - Wikipedia

    en.wikipedia.org/wiki/Iterator

    There are subtle differences and distinctions in the use of the terms "generator" and "iterator", which vary between authors and languages. [5] In Python, a generator is an iterator constructor: a function that returns an iterator. An example of a Python generator returning an iterator for the Fibonacci numbers using Python's yield statement ...