16 lines
440 B
Python
16 lines
440 B
Python
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def number(g):
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if not g or len(g) < 4 or any(len(r)!=len(g[0]) for r in g):
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raise ValueError('Ill-formed grid')
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if g == [" _ ","| |","|_|"," "]:
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return '0'
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elif g == [" "," |"," |"," "]:
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return '1'
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else:
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return '?'
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def grid(n):
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if n == '0':
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return [" _ ","| |","|_|"," "]
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elif n == '1':
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return [" "," |"," |"," "]
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raise ValueError('Unknown digit')
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