24 lines
678 B
Plaintext
24 lines
678 B
Plaintext
from typing import List
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def is_valid_walk(walk):
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if len(walk) != 10:
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return False
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hasWalk = list()
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for m in walk:
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if (m == 'n' and hasWalk.index('s')>=0):
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hasWalk.remove(hasWalk.index('s'))
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elif (m == 's' and hasWalk.index('n')>=0):
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hasWalk.remove(hasWalk.index('n'))
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elif (m == 'e' and hasWalk.index('w')>=0):
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hasWalk.remove(hasWalk.index('w'))
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elif (m == 'w' and hasWalk.index('e')>=0):
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hasWalk.remove(hasWalk.index('e'))
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else:
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hasWalk.append(m)
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return len(hasWalk) == 0
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print(is_valid_walk(['n','s','n','s','n','s','n','s','n','s'])) |