30 lines
799 B
Python
30 lines
799 B
Python
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with open("input") as f:
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content = [x.strip().replace(")", " )").replace("(", "( ").split(" ") for x in f]
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def evaluate(expression, startpos):
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result = 0
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operator = "+"
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number = 0
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i = startpos
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while i < len(expression):
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number = None
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if expression[i] == "(":
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number, i = evaluate(expression, i + 1)
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elif expression[i] == ")":
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return result, i
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elif expression[i] in ["*", "+"]:
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operator = expression[i]
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else:
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number = int(expression[i])
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if number is not None:
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if operator == "*":
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result *= number
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elif operator == "+":
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result += number
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i += 1
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return result
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print(sum(map(lambda x: evaluate(x, 0), content)))
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