Python | SymPy placement . get _ 邻接 _ 距离()方法
原文:https://www . geeksforgeeks . org/python-sympy-置换-get _ 邻接 _ 距离-method/
arrangement . get _ 邻接 _ distance():get _ 邻接 _distance() 是一个计算两个置换之间邻接距离的 sympy Python 库函数。
语法: sympy . combinations .排列.置换. get _ 邻接 _distance()
返回: 两个排列之间的邻接距离
代码# 1:get _ 邻接 _ 距离()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 _ 邻接 _ 距离表格 b:3 b–get _ 邻接 _ 距离表格 c: 5
代码# 2:get _ 邻接 _ 距离()示例–2D 置换
# 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 _ 邻接 _ 距离形式 b : 7
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