project_euler.problem_019.sol1 ============================== .. py:module:: project_euler.problem_019.sol1 .. autoapi-nested-parse:: Counting Sundays Problem 19 You are given the following information, but you may prefer to do some research for yourself. 1 Jan 1900 was a Monday. Thirty days has September, April, June and November. All the rest have thirty-one, Saving February alone, Which has twenty-eight, rain or shine. And on leap years, twenty-nine. A leap year occurs on any year evenly divisible by 4, but not on a century unless it is divisible by 400. How many Sundays fell on the first of the month during the twentieth century (1 Jan 1901 to 31 Dec 2000)? Functions --------- .. autoapisummary:: project_euler.problem_019.sol1.solution Module Contents --------------- .. py:function:: solution() Returns the number of mondays that fall on the first of the month during the twentieth century (1 Jan 1901 to 31 Dec 2000)? >>> solution() 171