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43 lines
989 B
Python
43 lines
989 B
Python
3 years ago
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with open("input") as f:
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start_number = f.readline().strip()
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# start_number = "211"
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print("Start:", start_number)
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def generate_next_number(number):
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next_number = ""
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last_char = ""
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char_count = 0
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for char in number:
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# initialize
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if not last_char:
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last_char = char
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char_count = 1
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continue
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# same as last char: increase count
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if char == last_char:
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char_count += 1
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continue
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# different than last char: append to next_number and initialize
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next_number = next_number + str(char_count) + last_char
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char_count = 1
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last_char = char
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next_number = next_number + str(char_count) + last_char
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return next_number
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for i in range(40):
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print("Iteration:", i + 1)
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prev_number = start_number
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start_number = generate_next_number(start_number)
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# print(f"{prev_number} -> {start_number}")
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print("Solution:")
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print(len(start_number))
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