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57 lines
1.3 KiB
Python
57 lines
1.3 KiB
Python
with open("input") as f:
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instructions = [n.strip() for n in f.readlines()]
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solution_part_1 = 46065
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SOURCES = dict()
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for instruction in instructions:
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print(instruction)
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[operation, wire] = instruction.split(" -> ")
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SOURCES[wire] = operation
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SOURCES["b"] = solution_part_1
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def evaluate_wire(wire):
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try:
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return int(wire)
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except ValueError:
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pass
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operation = SOURCES[wire]
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print("evaluating wire", wire, "; operation:", operation)
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if type(operation) == int:
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return operation
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parameters = operation.split(" ")
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result = None
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if "NOT" in operation:
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[_, a] = parameters
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result = evaluate_wire(a) ^ 0b1111111111111111
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elif "OR" in operation:
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[a, _, b] = parameters
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result = evaluate_wire(a) | evaluate_wire(b)
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elif "AND" in operation:
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[a, _, b] = parameters
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result = evaluate_wire(a) & evaluate_wire(b)
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elif "LSHIFT" in operation:
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[a, _, b] = parameters
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result = evaluate_wire(a) << evaluate_wire(b)
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elif "RSHIFT" in operation:
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[a, _, b] = parameters
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result = evaluate_wire(a) >> evaluate_wire(b)
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else:
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result = evaluate_wire(operation)
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SOURCES[wire] = str(result)
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return result
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print(evaluate_wire("a"))
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print("finish")
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