Prufer.unrank() : unrank() is a sympy Python library function that returns the unranked Prufer sequence.
Syntax :
sympy.combinatorics.Prufer.prufer.unrank()Return :
unranked Prufer sequence
Code #1 : unrank() Example
# Python code explaining # SymPy.Prufer.unrank() # importing SymPy libraries from sympy.combinatorics import Permutation, Cycle from sympy.combinatorics.prufer import Prufer # Using from # sympy.combinatorics.prufer.Prufer.unrank() # Creating Prufer a = Prufer([1, 2, 3], [2, 4, 5]) # unrank value # rank = 2 # n = 5 print ("Prufer a unrank : ", a.unrank(2, 5)) |
Output :
Prufer a unrank : 125
Code #2 : unrank() Example
# Python code explaining # SymPy.Prufer.unrank() # importing SymPy libraries from sympy.combinatorics import Permutation, Cycle from sympy.combinatorics.prufer import Prufer # Using from # sympy.combinatorics.prufer.Prufer.unrank() # Creating Prufer b = Prufer([1, 2, 3, 2, 4, 5], [6, 7], [8]) # unrank value # rank = 2 # n = 5 print ("Prufer b unrank : ", b.unrank(2, 5)) |
Output :
Prufer b unrank : Prufer([0, 0, 2])
