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25 lines
576 B
Python
25 lines
576 B
Python
#!/usr/bin/env python3
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INPUT_FILE = 'input'
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WINDOW_SIZE = 4
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def main():
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content = map(str.strip, open(INPUT_FILE, 'r').readlines())
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for line in content:
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seen_chars = []
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char_pos = 0
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for char in line:
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char_pos += 1
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if len(seen_chars) == WINDOW_SIZE:
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seen_chars.pop(0)
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seen_chars.append(char)
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if len(set(seen_chars)) == WINDOW_SIZE:
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print(seen_chars, char)
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print(char_pos)
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break
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if __name__ == '__main__':
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main()
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