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advent/y2015/p03.py

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  1. from itertools import accumulate as acc

  2. 

  3. 

  4. text = data_file.read_text()

  5. dirs = dict(zip('<>^v', [-1, 1, -1j, 1j]))

  6. ans1 = len({*acc(map(dirs.get, text))})

  7. ans2 = len({*acc(map(dirs.get, text[::2])), *acc(map(dirs.get, text[1::2]))})