Саргсян Тачат 321 TrianglesCmp 5997			Корчагина Анна Вячеславовна, 517 TrianglesCmp 5928
f	1	import math	f	1	import math
	2			2
	3	class Triangle:		3	class Triangle:
	4			4
	5	def __init__(self, a, b, c):		5	def __init__(self, a, b, c):
	6	self.a = float(a)		6	self.a = float(a)
	7	self.b = float(b)		7	self.b = float(b)
	8	self.c = float(c)		8	self.c = float(c)
	9	sides = [self.a, self.b, self.c]		9	sides = [self.a, self.b, self.c]
	10	sides.sort()		10	sides.sort()
	11	self._is_empty = not (all((side > 0 for side in sides)) and side		11	self._is_empty = not (all((side > 0 for side in sides)) and side
	>	s[0] + sides[1] > sides[2])		>	s[0] + sides[1] > sides[2])
	12			12
	13	def __bool__(self):		13	def __bool__(self):
	14	return not self._is_empty		14	return not self._is_empty
	15			15
	16	def __abs__(self):		16	def __abs__(self):
	17	if self._is_empty:		17	if self._is_empty:
	18	return 0.0		18	return 0.0
	19	p = (self.a + self.b + self.c) / 2		19	p = (self.a + self.b + self.c) / 2
	20	return math.sqrt(p * (p - self.a) * (p - self.b) * (p - self.c))		20	return math.sqrt(p * (p - self.a) * (p - self.b) * (p - self.c))
	21			21
	22	def __eq__(self, other):		22	def __eq__(self, other):
	23	if not isinstance(other, Triangle):		23	if not isinstance(other, Triangle):
	24	return NotImplemented		24	return NotImplemented
	25	self_sides = sorted([self.a, self.b, self.c])		25	self_sides = sorted([self.a, self.b, self.c])
	26	other_sides = sorted([other.a, other.b, other.c])		26	other_sides = sorted([other.a, other.b, other.c])
	27	return math.isclose(self_sides[0], other_sides[0]) and math.iscl		27	return math.isclose(self_sides[0], other_sides[0]) and math.iscl
	>	ose(self_sides[1], other_sides[1]) and math.isclose(self_sides[2], other		>	ose(self_sides[1], other_sides[1]) and math.isclose(self_sides[2], other
	>	_sides[2])		>	_sides[2])
	28			28
	29	def __lt__(self, other):		29	def __lt__(self, other):
	30	if not isinstance(other, Triangle):		30	if not isinstance(other, Triangle):
	31	return NotImplemented		31	return NotImplemented
	32	return abs(self) < abs(other)		32	return abs(self) < abs(other)
	33			33
	34	def __le__(self, other):		34	def __le__(self, other):
	35	if not isinstance(other, Triangle):		35	if not isinstance(other, Triangle):
	36	return NotImplemented		36	return NotImplemented
	37	return abs(self) <= abs(other)		37	return abs(self) <= abs(other)
	38			38
	39	def __gt__(self, other):		39	def __gt__(self, other):
	40	if not isinstance(other, Triangle):		40	if not isinstance(other, Triangle):
	41	return NotImplemented		41	return NotImplemented
	42	return abs(self) > abs(other)		42	return abs(self) > abs(other)
	43			43
	44	def __ge__(self, other):		44	def __ge__(self, other):
	45	if not isinstance(other, Triangle):		45	if not isinstance(other, Triangle):
	46	return NotImplemented		46	return NotImplemented
	47	return abs(self) >= abs(other)		47	return abs(self) >= abs(other)
	48			48
	49	def __str__(self):		49	def __str__(self):
t	50	return f'{self.a}:{self.b}:{self.c}'	t	50	return f'{self.a:.1f}:{self.b:.1f}:{self.c:.1f}'

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