31 lines
672 B
Python
31 lines
672 B
Python
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#!/usr/bin/env python3
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def find_signal(line):
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letters = [line[x] for x in range(4)]
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for index, letter in enumerate(line[4:]):
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if len(set(letters)) == 4:
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return(index + 4)
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letters[index % 4] = letter
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def find_signal_two(line):
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letters = [line[x] for x in range(14)]
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for index, letter in enumerate(line[14:]):
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if len(set(letters)) == 14:
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return(index + 14)
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letters[index % 14] = letter
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def main():
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with open('day6', 'r') as file:
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line = file.readlines()
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line = line[0].strip()
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print(find_signal(line))
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print(find_signal_two(line))
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if __name__ == '__main__':
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main()
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