Permutations

 

参考资料参考资料

Permutations list permutations of a set of integers

Permute permute a list given a permutation

SignaturePermutation sign or parity of a permutation

IdentityPermutation identity permutation of a given size

PermutationQ ▪ LexicographicPermutations ▪ MinimumChangePermutations

NextPermutation next permutation in lexicographic ordering

RankPermutation associate a permutation with a unique rank

InversePermutation ▪ UnrankPermutation ▪ RandomPermutation ▪ Josephus

PermutationType type of a permutation

PermutationGraph graph for a permutation

NumberOfPermutationsByType ▪ NumberOfPermutationsByCycles

SelectionSort sort a list given an ordering function

BinarySearch search a sorted list for a key

RandomHeap construct a random heap

Heapify ▪ HeapSort

ToInversionVector inversion vector of a permutation

Inversions number of inversions

Index index of a permutation

FromInversionVector ▪ Runs ▪ Eulerian

NumberOfPermutationsByInversions ▪ InversionPoset

Involutions list permutations with cycles of length at most 2

Derangements list permutations leaving no element untouched

InvolutionQ ▪ NumberOfInvolutions ▪ DerangementQ ▪ NumberOfDerangements

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