• and computer science, a stack-sortable permutation (also called a tree permutation) is a permutation whose elements may be sorted by an algorithm whose...
    12 KB (1,477 words) - 23:52, 7 November 2023
  • the permutation π can be sorted by a stack if and only if π avoids 231, and that the stack-sortable permutations are enumerated by the Catalan numbers...
    31 KB (3,647 words) - 20:59, 17 June 2025
  • Thumbnail for Separable permutation
    into smaller rectangles. The separable permutations include as a special case the stack-sortable permutations, which avoid the pattern 231. Kitaev (2011)...
    11 KB (1,420 words) - 12:31, 26 May 2025
  • basis consists of only a single permutation. Thus, for instance, the stack-sortable permutations form a principal permutation class, defined by the forbidden...
    3 KB (448 words) - 09:51, 26 June 2024
  • Input: sin ( max ( 2, 3 ) ÷ 3 × π ) Operator-precedence parser Stack-sortable permutation Theodore Norvell (1999). "Parsing Expressions by Recursive Descent"...
    13 KB (1,054 words) - 15:19, 22 February 2025
  • layered permutations are a subset of the stack-sortable permutations, which forbid the pattern 231 but not the pattern 312. Like the stack-sortable permutations...
    5 KB (618 words) - 12:42, 26 May 2025
  • Thumbnail for Pancake sorting
    Pancake sorting is the mathematical problem of sorting a disordered stack of pancakes in order of size when a spatula can be inserted at any point in...
    21 KB (2,201 words) - 16:10, 10 April 2025
  • Thumbnail for Quicksort
    Quicksort (redirect from Quick sort)
    log n) time. To sort an array of n distinct elements, quicksort takes O(n log n) time in expectation, averaged over all n! permutations of n elements with...
    71 KB (9,925 words) - 14:27, 31 May 2025
  • Thumbnail for Catalan number
    case n = 4: Cn is the number of stack-sortable permutations of {1, ..., n}. A permutation w is called stack-sortable if S(w) = (1, ..., n), where S(w)...
    40 KB (6,013 words) - 02:24, 6 June 2025
  • Thumbnail for Sorting algorithm
    previous element, according to the required order). The output is a permutation (a reordering, yet retaining all of the original elements) of the input...
    69 KB (6,477 words) - 13:21, 10 June 2025
  • permutations, such as the cycle structure of a random permutation are of fundamental importance in the analysis of algorithms, especially of sorting algorithms...
    51 KB (11,998 words) - 05:56, 13 December 2024
  • Thumbnail for Trivially perfect graph
    must be a subset of the other. They are the permutation graphs defined from stack-sortable permutations. They are the graphs with the property that in...
    11 KB (1,189 words) - 20:48, 28 December 2024
  • Gilbert–Shannon–Reeds model is a probability distribution on riffle shuffle permutations. It forms the basis for a recommendation that a deck of cards should...
    9 KB (1,290 words) - 08:12, 4 May 2024
  • elements are sorted on the first iteration. In each iteration all elements are checked if in order. There are n! possible permutations; with a balanced...
    13 KB (1,273 words) - 21:09, 3 March 2024
  • Thumbnail for Pancake graph
    vertices are the permutations of n symbols from 1 to n and its edges are given between permutations transitive by prefix reversals. Pancake sorting is the colloquial...
    16 KB (1,957 words) - 16:06, 18 March 2025
  • Thumbnail for Book embedding
    application cited by Chung, Leighton & Rosenberg (1987) concerns sorting permutations using stacks. An influential result of Donald Knuth (1968) showed that...
    68 KB (8,167 words) - 00:16, 5 October 2024
  • Thumbnail for Shuffling
    number to each card, and then sort the cards in order of their random numbers. This will generate a random permutation, unless any of the random numbers...
    28 KB (3,823 words) - 10:44, 28 May 2025
  • efficient sorting method of O ( n + k ) {\displaystyle O(n+k)} . Array of dynamically allocated memory can be implemented by linked list, stack, queue,...
    18 KB (2,372 words) - 07:37, 29 September 2024
  • Thumbnail for Heapsort
    Heapsort (redirect from Heap sort)
    git/tree/lib/sort.c#n205 Linux kernel source Maus, Arne [in Norwegian] (14 May 2014). "Sorting by generating the sorting permutation, and the effect...
    49 KB (5,718 words) - 08:39, 21 May 2025
  • (PDF). Ionescu, Vlad. "calculating the number of "inversions" in a permutation". Stack overflow. Retrieved 24 February 2017. Chan, Timothy M.; Pătraşcu...
    9 KB (1,514 words) - 15:18, 17 April 2025
  • Douglas (1993). "Engineering radix sort" (PDF). Computing Systems. 6 (1): 5–27. "algorithm - In-Place Radix Sort". Stack Overflow. Retrieved 2020-10-18....
    7 KB (983 words) - 07:07, 30 December 2024
  • Thumbnail for Simplex noise
    which there are n! possibilities, each of which corresponds to a single permutation of the coordinate. In other words, start with the zero coordinate and...
    8 KB (1,075 words) - 12:48, 21 March 2025
  • of sets of permutations defined by forbidden patterns; she found a bijective proof that the stack-sortable permutations and the permutations formed by...
    7 KB (680 words) - 18:02, 23 March 2024
  • is closely related to an algorithm of Knuth for sorting with a stack (for inputs that can be sorted in this way). An even simpler linear-time sequential...
    10 KB (1,347 words) - 11:55, 25 April 2025
  • randomly shuffle a finite set Heap's permutation generation algorithm: interchange elements to generate next permutation Schensted algorithm: constructs a...
    72 KB (7,951 words) - 17:13, 5 June 2025
  • AVX-512 Vector Byte Manipulation Instructions (VBMI) adds vector byte permutation instructions which are not present in AVX-512BW. AVX-512 Vector Neural...
    51 KB (4,089 words) - 23:38, 15 May 2025
  • Thumbnail for Mathematics of Sudoku
    C2) act on two copies of that group, one for the row permutations and one for the column permutations. This is S3 ≀ S3 ≀ C2, a group of order 1,2962 × 2...
    21 KB (2,295 words) - 14:32, 13 March 2025
  • Thumbnail for The Art of Computer Programming
    of power series Chapter 5 – Sorting 5.1. Combinatorial properties of permutations 5.1.1. Inversions 5.1.2. Permutations of a multiset 5.1.3. Runs 5.1...
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  • perfect matching perfect shuffle performance guarantee performance ratio permutation persistent data structure phonetic coding pile (data structure) pipelined...
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  • lexicographically ordered permutations of a range of elements, merge sorted ranges and perform union, intersection, difference of sorted ranges. The STL includes...
    24 KB (2,140 words) - 18:06, 7 June 2025