Els exemples que compten per la nota són només els que van seguits de
``# doctesttag: +TAG=...``

>>> from itertools import *

Tests exercici 1
----------------

>>> from zombie import moviments_zombie

>>> lc1 = [(0, 0), (0, 100), (30, 100), (20, 100), (20, 85), (10, 85)]
>>> lc2 = [(-x,-y) for x,y in lc1]
>>> lc3 = [(0, 0), (0, 10), (0, 15), (0, 20), (-20, 20), (-20, 50), (20, 50), (20, 0), (-40, 0), (-40, -70), (40, -70), (-50, -70), (-50, -170), (-50, -60), (70, -60), (-60, -60), (80, -60), (80, -210), (80, -50), (-90, -50)]
>>> lc4 = [(0, 0), (0, 20), (10, 20), (10, 0)]
>>> lc5 = [(-x, -y) for x,y in lc3]
>>> lc6 = [(0,0), (1,0), (0,0), (-1,0), (0,0), (0,1), (0,0), (0,-1)]
>>> lc7 = [(-2*x, 3*y) for x,y in lc6]
>>> lc8 = [(0,0), (0,10), (0,20), (0,10), (0,0), (10,0), (20,0), (10,0)]

>>> for elem in moviments_zombie(iter(lc1[3:5])):    # doctesttag: +TAG=1_zombie
...     print(elem, end=',')
('S', 15),
>>> for elem in moviments_zombie(iter(lc1)):    # doctesttag: +TAG=1_zombie
...     print(elem, end=',')
('N', 100),('E', 30),('O', 10),('S', 15),('O', 10),
>>> for elem in moviments_zombie(iter(lc1[:-1] + lc1[::-1])):    # doctesttag: +TAG=1_zombie
...     print(elem, end=',')
('N', 100),('E', 30),('O', 10),('S', 15),('O', 10),('E', 10),('N', 15),('E', 10),('O', 30),('S', 100),
>>> for elem in moviments_zombie(iter(lc2)):    # doctesttag: +TAG=1_zombie
...     print(elem, end=',')
('S', 100),('O', 30),('E', 10),('N', 15),('E', 10),
>>> for elem in moviments_zombie(iter(lc3)):    # doctesttag: +TAG=1_zombie
...     print(elem, end=',')
('N', 10),('N', 5),('N', 5),('O', 20),('N', 30),('E', 40),('S', 50),('O', 60),('S', 70),('E', 80),('O', 90),('S', 100),('N', 110),('E', 120),('O', 130),('E', 140),('S', 150),('N', 160),('O', 170),
>>> for elem in islice(moviments_zombie(cycle(lc4)), 1000, 1010):    # doctesttag: +TAG=1_zombie
...     print(elem, end=',')
('N', 20),('E', 10),('S', 20),('O', 10),('N', 20),('E', 10),('S', 20),('O', 10),('N', 20),('E', 10),
>>> for elem in islice(moviments_zombie(cycle(lc6)), 10000, 10020):    # doctesttag: +TAG=1_zombie
...     print(elem, end=',')
('E', 1),('O', 1),('O', 1),('E', 1),('N', 1),('S', 1),('S', 1),('N', 1),('E', 1),('O', 1),('O', 1),('E', 1),('N', 1),('S', 1),('S', 1),('N', 1),('E', 1),('O', 1),('O', 1),('E', 1),
>>> for elem in islice(moviments_zombie(cycle(lc7)), 100000, 100020):    # doctesttag: +TAG=1_zombie
...     print(elem, end=',')
('O', 2),('E', 2),('E', 2),('O', 2),('N', 3),('S', 3),('S', 3),('N', 3),('O', 2),('E', 2),('E', 2),('O', 2),('N', 3),('S', 3),('S', 3),('N', 3),('O', 2),('E', 2),('E', 2),('O', 2),
>>> for elem in moviments_zombie(iter(lc8 * 2)):    # doctesttag: +TAG=1_zombie
...     print(elem, end=',')
('N', 10),('N', 10),('S', 10),('S', 10),('E', 10),('E', 10),('O', 10),('O', 10),('N', 10),('N', 10),('S', 10),('S', 10),('E', 10),('E', 10),('O', 10),
>>> for elem in islice(moviments_zombie(cycle(lc8)), 1000000, 1000020):    # doctesttag: +TAG=1_zombie
...     print(elem, end=',')
('N', 10),('N', 10),('S', 10),('S', 10),('E', 10),('E', 10),('O', 10),('O', 10),('N', 10),('N', 10),('S', 10),('S', 10),('E', 10),('E', 10),('O', 10),('O', 10),('N', 10),('N', 10),('S', 10),('S', 10),

Tests exercici 2
----------------

>>> from extraccio import extreu_negatius

>>> s1 = 'coordenades -10 23 -40 67 i 12 -50'.split()
>>> s2 = 'uns quants símbols i sigles R2D2 KH7 N-245 i H2O2 4t 1a -hola- i dos negatius -789 -666'.split() 
>>> s3 = ( str(i*(-1)**i) for i in range(20) )
>>> s4 = '34534522 A18 18A A19B -X23 -34A -11 --45 +67 -67- 67- - +'.split()
>>> s5 = '-1234567890 10-02-2025 -987654321 R12121212'.split()
>>> for r in extreu_negatius(iter(s1)):  # doctesttag: +TAG=2_negatius
...     print(r, end=',')
-10,-40,-50,
>>> for r in extreu_negatius(iter(s2)):  # doctesttag: +TAG=2_negatius
...     print(r, end=',')
-789,-666,
>>> for r in extreu_negatius(iter(s1[::-1]+s2[::-1])):  # doctesttag: +TAG=2_negatius
...     print(r, end=',')
-50,-40,-10,-666,-789,
>>> for r in extreu_negatius(iter(s3)):  # doctesttag: +TAG=2_negatius
...     print(r, end=',')
-1,-3,-5,-7,-9,-11,-13,-15,-17,-19,
>>> for r in extreu_negatius(iter(s4)):  # doctesttag: +TAG=2_negatius
...     print(r, end=',')
-11,
>>> for r in extreu_negatius(s5):  # doctesttag: +TAG=2_negatius
...     print(r, end=',')
-1234567890,-987654321,
>>> for r in islice(extreu_negatius(repeat('-34')), 1000,1010):  # doctesttag: +TAG=2_negatius
...     print(r, end=',')
-34,-34,-34,-34,-34,-34,-34,-34,-34,-34,
>>> for r in islice(extreu_negatius(cycle(s1+s2+s5)), 10000, 10020):  # doctesttag: +TAG=2_negatius
...     print(r, end=',')
-666,-1234567890,-987654321,-10,-40,-50,-789,-666,-1234567890,-987654321,-10,-40,-50,-789,-666,-1234567890,-987654321,-10,-40,-50,
>>> for r in islice(extreu_negatius(cycle(s2+s4+s5)), 100000, 100020):  # doctesttag: +TAG=2_negatius
...     print(r, end=',')
-789,-666,-11,-1234567890,-987654321,-789,-666,-11,-1234567890,-987654321,-789,-666,-11,-1234567890,-987654321,-789,-666,-11,-1234567890,-987654321,
>>> for r in islice(extreu_negatius(cycle(['-45']*10 +['123']*100)), 1000000, 1000030):  # doctesttag: +TAG=2_negatius
...     print(r, end=',')
-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,