Five Weekends

October 16, 2018

This task comes to us from Rosetta Code: The month of October 2010 has five Fridays, five Saturdays and five Sundays.

Your task is to count and make a list of all months from 1900 to 2100, inclusive, that have five Fridays, Saturdays and Sundays, and to count and make a list of all years from 1900 to 2100, inclusive, that have no such months. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.

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