24 lines
517 B
Python
24 lines
517 B
Python
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data = '3113322113'
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def iterate(s):
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lastchar = s[0]
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lastcount = 1
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output = []
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for c in s[1:] + '\x00':
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if c == lastchar:
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lastcount += 1
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else:
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output += [str(lastcount), lastchar] # [lastchar]*lastcount
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lastchar = c
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lastcount = 1
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return ''.join(output)
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s = data
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for i in range(40):
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s = iterate(s)
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print(len(s)) # Part 1
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s2 = s
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for i in range(10): # equivalent to 50 times from starting input. Doesn't really save time though.
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s2 = iterate(s2)
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print(len(s2)) # Part 2
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