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  2. Quicksort - Wikipedia

    en.wikipedia.org/wiki/Quicksort

    Consider the example of [5, 2, 3, 1, 0], following the scheme, after the first partition the array becomes [0, 2, 1, 3, 5], the "index" returned is 2, which is the number 1, when the real pivot, the one we chose to start the partition with was the number 3. With this example, we see how it is necessary to include the returned index of the ...

  3. Quickselect - Wikipedia

    en.wikipedia.org/wiki/Quickselect

    This is known as the Lomuto partition scheme, which is simpler but less efficient than Hoare's original partition scheme. In quicksort, we recursively sort both branches, leading to best-case (⁡) time. However, when doing selection, we already know which partition our desired element lies in, since the pivot is in its final sorted position ...

  4. Partition (law) - Wikipedia

    en.wikipedia.org/wiki/Partition_(law)

    In either case, a Partition Referee is appointed to carry the interlocutory judgment into effect. The Partition Referee may be authorized to employ attorneys, surveyors, real estate broker, engineers, and the like. The sale by the Partition Referee can be made by either public auction or private sale, whichever is more beneficial to the parties.

  5. Law of total probability - Wikipedia

    en.wikipedia.org/wiki/Law_of_total_probability

    [citation needed] One author uses the terminology of the "Rule of Average Conditional Probabilities", [4] while another refers to it as the "continuous law of alternatives" in the continuous case. [5] This result is given by Grimmett and Welsh [6] as the partition theorem, a name that they also give to the related law of total expectation.

  6. Partition problem - Wikipedia

    en.wikipedia.org/wiki/Partition_problem

    The partition problem is a special case of two related problems: In the subset sum problem, ... An example of such a set is S = {2,5}. Computational hardness

  7. Longest-processing-time-first scheduling - Wikipedia

    en.wikipedia.org/wiki/Longest-processing-time...

    LPT might not find the optimal partition. For example, in the above instance the optimal partition {8,7}, {6,5,4}, where both sums are equal to 15. However, its suboptimality is bounded both in the worst case and in the average case; see Performance guarantees below.

  8. Partition of a set - Wikipedia

    en.wikipedia.org/wiki/Partition_of_a_set

    A partition α of a set X is a refinement of a partition ρ of X—and we say that α is finer than ρ and that ρ is coarser than α—if every element of α is a subset of some element of ρ. Informally, this means that α is a further fragmentation of ρ. In that case, it is written that α ≤ ρ.

  9. Twelvefold way - Wikipedia

    en.wikipedia.org/wiki/Twelvefold_way

    This case is equivalent to counting partitions of the number n into ≤ x parts. The association is the same as for the previous case, except that now some parts of the partition may be equal to 0. (Specifically, they correspond to elements of X not in the image of the function.)