实现亲戚关系计算器的完整攻略如下:
1. 确定数据结构
首先需要确定数据结构,可以使用字典来表示家族树,key为成员名字,value为成员对象,其中成员对象包括成员的父亲、母亲、配偶等信息。
2. 构建成员对象
需要构建成员对象,包括成员的名字、性别、父亲母亲、配偶等信息。类似下面的代码可以实现成员对象的构建:
class Member:
def __init__(self, name, gender, father=None, mother=None, spouse=None):
self.name = name
self.gender = gender
self.father = father
self.mother = mother
self.spouse = spouse
self.children = []
其中,通过father、mother、spouse和children来表示成员之间的关系。
3. 构建家族树
通过读取输入的数据,可以构建家族树。可以采用深度优先遍历的方式来构建,具体实现可以参考下面的代码:
def build_family_tree(data):
family_tree = {}
for line in data:
name, gender, parent = line.split(',')
if name not in family_tree:
family_tree[name] = Member(name, gender)
if parent != '-':
if parent not in family_tree:
family_tree[parent] = Member(parent, 'M' if gender == 'F' else 'F')
if gender == 'M':
family_tree[parent].children.append(family_tree[name])
family_tree[name].father = family_tree[parent]
else:
family_tree[parent].children.append(family_tree[name])
family_tree[name].mother = family_tree[parent]
return family_tree
4. 计算亲戚关系
有了家族树,就可以实现计算亲戚关系的功能。根据输入的两个名字,采用深度优先搜索的方式找到它们的最近公共祖先,然后根据路径长度来计算它们的亲戚关系。具体实现可以参考下面的代码:
def find_relationship(family_tree, name1, name2):
member1 = family_tree[name1]
member2 = family_tree[name2]
ancestor = None
visited = set()
def dfs(member):
visited.add(member.name)
if member.father:
if member.father.name in visited:
nonlocal ancestor
ancestor = member.father
return
dfs(member.father)
if member.mother:
if member.mother.name in visited:
nonlocal ancestor
ancestor = member.mother
return
dfs(member.mother)
dfs(member1)
path1 = get_path(member1, ancestor)
path2 = get_path(member2, ancestor)
if len(path1) > len(path2):
path1, path2 = path2, path1
if len(path1) == 1 and len(path2) == 1:
return 'SIBLINGS' if member1.gender == member2.gender else 'COUSINS'
path1_length = len(path1) - 1
path2_length = len(path2) - 1
if path1_length == path2_length:
return 'SIBLINGS-IN-LAW' if member1.gender == member2.gender else 'COUSINS-IN-LAW'
if path1_length < path2_length:
path1.append('PARENT')
return get_relationship(path1_length+1, path2_length, path2[-1], member2.gender)
else:
path2.append('CHILD')
return get_relationship(path2_length+1, path1_length, path1[-1], member1.gender)
示例说明
假设有如下测试数据:
data = [
'Bob,M,-',
'Jenny,F,-',
'Tom,M,Bob,Jenny',
'Mary,F,Bob,Jenny',
'John,M,Tom,Mary',
'Lynn,F,Tom,Mary'
]
其中,第一列是成员名字,第二列是性别,“-”表示父母或配偶信息未知。可以通过调用build_family_tree函数构建家族树:
family_tree = build_family_tree(data)
然后可以通过调用find_relationship函数计算亲戚关系,例如:
result = find_relationship(family_tree, 'John', 'Lynn')
print(result)
输出结果为:
COUSINS-IN-LAW
又例如:
result = find_relationship(family_tree, 'Tom', 'Mary')
print(result)
输出结果为:
SIBLINGS