Enable Javascript in your browser and then refresh this page, for a much enhanced experience.
2-liner: date split into mm-13-yyyy dates solution in Clear category for Unlucky Days by Stensen
from datetime import date
checkio = lambda y: [date(y, m, 13).weekday() == 4 for m in range(1, 13)].count(True)
Oct. 22, 2020
Comments:
