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First solution in Clear category for Friends by bukebuer
# migrated from python 2.7
from functools import reduce
class Friends():
def __init__(self, connections):
self.all_connection = list(connections)
def add(self, connection):
if connection in self.all_connection:
return False
else:
self.all_connection.append(connection)
return True
def remove(self, connection):
if connection in self.all_connection:
self.all_connection.remove(connection)
return True
else:
return False
def names(self):
return reduce(lambda a,b: a.union(b), self.all_connection)
def connected(self, name):
related = [pair for pair in self.all_connection if name in pair]
if related:
related = reduce(lambda a,b: a.union(b), related)
related.remove(name)
return related
else:
return set([])
Nov. 12, 2014
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