Python SymPy Permutation.get_adjacency_distance()方法
Permutation.get_adjacency_distance() : get_adjacency_distance()是一个sympy Python库函数,计算两个排列组合之间的相邻距离。
语法 : sympy.combinatorics.permutations.Permutation.get_adjacency_distance()
返回 :
毗连距离的两个包罗万象的
代码 #1 : get_adjacency_distance() 示例
# Python code explaining
# SymPy.Permutation.get_adjacency_distance()
# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
# Using from
# sympy.combinatorics.permutations.Permutation.get_adjacency_distance() method
# creating Permutation
a = Permutation([2, 0, 3, 1, 5, 4])
b = Permutation([3, 1, 2, 5, 4, 0])
c = Permutation([0, 1, 3, 4, 5, 2])
print ("a - get_adjacency_distance form b: ", a.get_adjacency_distance(b))
print ("b - get_adjacency_distance form c: ", b.get_adjacency_distance(c))
输出 :
a – get_adjacency_distance form b: 3
b – get_adjacency_distance form c: 5
代码 #2 : get_adjacency_distance() 示例 – 二维互换
# Python code explaining
# SymPy.Permutation.get_adjacency_distance()
# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
# Using from
# sympy.combinatorics.permutations.Permutation.get_adjacency_distance() method
# creating Permutation
a = Permutation([[2, 4, 0],
[7, 1, 3],
[8, 5, 6]])
b = Permutation([[8, 4, 0],
[2, 7, 0],
[1, 6, 7]])
print ("a get_adjacency_distance form b : ", a.get_adjacency_distance(b))
输出 :
a get_adjacency_distance form b : 7