Prufer.edges():edges()是一個sympy Python庫函數,它返回節點的數目和連接給定標記的整數中的節點的邊列表,這些節點將整數標記為樹。
用法:
sympy.combinatorics.Prufer.prufer.edges()
返回:
節點數和邊列表
代碼1:edges()示例
# Python code explaining
# SymPy.Prufer.edges()
# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.prufer import Prufer
# Using from
# sympy.combinatorics.prufer.Prufer.edges()
# Creating Prufer
a = Prufer.edges([1, 2, 3], [2, 4, 5])
# edge value
print ("Prufer a edges : ", a)
輸出:
Prufer a edges : ([[0, 1], [1, 2], [1, 3], [3, 4]], 5)
代碼2:edges()示例
# Python code explaining
# SymPy.Prufer.edges()
# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.prufer import Prufer
# Using from
# sympy.combinatorics.prufer.Prufer.edges()
# Creating Prufer
b = Prufer.edges([1, 2, 3, 2, 4, 5], [6, 7], [8])
# edge value
print ("Prufer b edges : ", b)
輸出:
Prufer b edges : ([[0, 1], [1, 2], [1, 3], [3, 4], [5, 6]], 7)
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