mirror of https://github.com/Lyxal/Keta.git
35 lines
669 B
Python
35 lines
669 B
Python
dyads = "*+-/%"
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monads = list(map(chr, range(ord("A"), ord("Z") + 1)))
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nilads = "1234567890"
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source = input()
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arities = []
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for char in source:
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if char in dyads:
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arities.append((2, char))
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elif char in monads:
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arities.append((1, char))
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else:
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arities.append((0, char))
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exprs = []
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while len(arities):
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# Try grouping triplets
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if len(arities) - 3 >= 0:
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exprs.append(arities[-3:])
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del arities[-3:]
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# Now, try grouping pair
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elif len(arities) - 2 >= 0:
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exprs.append(arities[-2:])
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del arities[-2:]
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else:
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exprs.append(arities[-1])
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del arities[-1]
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print(exprs)
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