Програмиране с Python

Курс във Факултета по Математика и Информатика към СУ

Решение на Родословно дърво от Йордан Костадинов

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Към профила на Йордан Костадинов

Резултати

  • 6 точки от тестове
  • 0 бонус точки
  • 6 точки общо
  • 11 успешни тест(а)
  • 0 неуспешни тест(а)

Код

from collections import defaultdict
import weakref
class KeepRefs(object):
__refs__ = defaultdict(list)
def __init__(self):
self.__refs__[self.__class__].append(weakref.ref(self))
@classmethod
def get_instances(cls):
for inst_ref in cls.__refs__[cls]:
inst = inst_ref()
if inst is not None:
yield inst
class Person(KeepRefs):
def __init__(self, name="", birth_year=0, gender="",
mother=None, father=None):
super(Person, self).__init__()
self.name = name
self.birth_year = birth_year
self.gender = gender
self.mother = mother
self.father = father
def get_siblings(self, sex):
result = []
for human in Person.get_instances():
if (human is not self and
human.gender == sex and
((self.mother is human.mother and self.mother is not None) or
(self.father is human.father and self.father is not None))):
result.append(human)
return result
def get_brothers(self):
return self.get_siblings("M")
def get_sisters(self):
return self.get_siblings("F")
def children(self, gender=None):
result = []
for human in Person.get_instances():
if (human is not self and
(human.father is self or human.mother is self) and
(human.gender == gender or gender is None)):
result.append(human)
return result
def is_direct_successor(self, stranger):
if (self.father is stranger or
self.mother is stranger or
stranger.father is self or
stranger.mother is self):
return True
else:
return False

Лог от изпълнението

...........
----------------------------------------------------------------------
Ran 11 tests in 0.006s

OK

История (1 версия и 0 коментара)

Йордан обнови решението на 01.04.2013 02:27 (преди над 11 години)

+from collections import defaultdict
+import weakref
+
+
+class KeepRefs(object):
+ __refs__ = defaultdict(list)
+
+ def __init__(self):
+ self.__refs__[self.__class__].append(weakref.ref(self))
+
+ @classmethod
+ def get_instances(cls):
+ for inst_ref in cls.__refs__[cls]:
+ inst = inst_ref()
+ if inst is not None:
+ yield inst
+
+
+class Person(KeepRefs):
+ def __init__(self, name="", birth_year=0, gender="",
+ mother=None, father=None):
+ super(Person, self).__init__()
+ self.name = name
+ self.birth_year = birth_year
+ self.gender = gender
+ self.mother = mother
+ self.father = father
+
+ def get_siblings(self, sex):
+ result = []
+ for human in Person.get_instances():
+ if (human is not self and
+ human.gender == sex and
+ ((self.mother is human.mother and self.mother is not None) or
+ (self.father is human.father and self.father is not None))):
+ result.append(human)
+ return result
+
+ def get_brothers(self):
+ return self.get_siblings("M")
+
+ def get_sisters(self):
+ return self.get_siblings("F")
+
+ def children(self, gender=None):
+ result = []
+ for human in Person.get_instances():
+ if (human is not self and
+ (human.father is self or human.mother is self) and
+ (human.gender == gender or gender is None)):
+ result.append(human)
+ return result
+
+ def is_direct_successor(self, stranger):
+ if (self.father is stranger or
+ self.mother is stranger or
+ stranger.father is self or
+ stranger.mother is self):
+ return True
+ else:
+ return False