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with open("input", "r") as file:
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data = file.read().splitlines()
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def binaryToDecimal(binArray):
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base = 2
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result = 0
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for position in range(len(binArray)):
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exp = len(binArray) - position - 1
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result += binArray[position] * (base ** exp)
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return result
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# Task 1
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sums = [0 for _ in range(len(data[0]))]
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for line in data:
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for i in range(len(line)):
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sums[i] += int(line[i])
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gammaBin, epsilonBin = [], []
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for s in sums:
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if s < len(data) // 2:
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gammaBin.append(0)
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epsilonBin.append(1)
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if s > len(data) // 2:
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gammaBin.append(1)
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epsilonBin.append(0)
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gamma, epsilon = binaryToDecimal(gammaBin), binaryToDecimal(epsilonBin)
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print(gamma, epsilon)
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print(gamma * epsilon)
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# Task 2
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def findRating(currentData, pos=0, least=False):
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if len(currentData) == 1:
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return [int(element) for element in currentData[0]]
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|
|
oneRows, zeroRows = [], []
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for binaryString in currentData:
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bit = int(binaryString[pos])
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if bit == 0:
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zeroRows.append(binaryString)
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if bit == 1:
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oneRows.append(binaryString)
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if least:
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newData = zeroRows if len(zeroRows) <= len(oneRows) else oneRows
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else:
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newData = oneRows if len(oneRows) >= len(zeroRows) else zeroRows
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return findRating(newData, pos + 1, least)
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|
oxygenGenerator = binaryToDecimal(findRating(data))
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|
|
co2Scrubber = binaryToDecimal(findRating(data, least=True))
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|
|
print(oxygenGenerator, co2Scrubber)
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|
|
print(oxygenGenerator * co2Scrubber)
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