Day 9: Mirage Maintenance

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  • @itslilith
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    6
    edit-2
    7 months ago

    (Cursed) Python

    I solved the actual thing recursively in Rust, but I decided that wasn’t cursed enough, so I present: Polynomial fitting!

    import numpy.polynomial.polynomial as pol
    
    with open("input.txt") as f:
      lines = list(map(lambda l: list(map(int, l.split(" "))), f.read().split("\n")))
    
    lo, hi = 0, 0
    
    for line in lines:
      for i in range(len(line)):
        poly, (r, *_) = pol.Polynomial.fit(range(len(line)), line, full=True, deg=i)
        if r < 0.0000000001:
          break
    
      lo += int(round(poly(-1)))
      hi += int(round(poly(len(line))))
    
    print(f"Part 1: {hi}")
    print(f"Part 2: {lo}")