4 ms·

I'm not really sure what I am looking at. EDIT: Now I am. Clever!

• bobongo 7y ago
  I still am not. Could you explain?
  • laszlokorte 7y ago
    2d lookup table for (month,day) -> weekday
  • knolax 7y ago
    To find the current day of the week, look at the row corresponding to the day of the month and the column corresponding to the month. There's a typo for the days 18-21 where there's two 18s.