Easter Sunday

In this program you will compute the date of Easter Sunday. Easter Sunday is the first Sunday after the first full moon of Spring. This algorithm was invented by Carl Friedrich Gauss.

Let y be the year ( such as 2001 ).
Divide y by 19 and call the remainder a. Ignore the quotient.
Divide y by 100 to get a quotient b and a remainder c.
Divide b by 4 to get a quotient d and a remainder e.
Divide 8 * b + 13 by 25 to get a quotient g. Ignore the remainder.
Divide 19 * a + b - d - g + 15 by 30 to get a remainder h. Ignore the quotient.
Divide c by 4 to get a quotient j and a remainder k.
Divide a + 11 * h by 319 to get a quotient m. Ignore the remainder.
Divide 2 * e + 2 * j - k - h + m + 32 by 7 to get a remainder r. Ignore the quotient.
Divide h - m + r + 90 by 25 to get a quotient n. Ignore the remainder.
Divide h - m + r + n + 19 by 32 to get a remainder p. Ignore the quotient.

Easter Sunday falls on day p of the month n. For example if y is 2001:

a = 6
b = 20
c = 1
d = 5, e = 0
g = 6
h = 18
j = 0, k = 1
m = 0
r = 6
n = 4
p = 15

Hence in 2001, Easter Sunday was on 15 April.

Input: Store the year in a text file called year.in. Read the file from the command line.

Output: Your output will be of the following form:

In 2001 Easter Sunday is on 15 April.

Go to the US Naval Observatory website and check your result.

The program that you will be writing will be called EasterSunday.py. You may use the same variable names used in the problem statement. Your file EasterSunday.py will have the following header:


#  File: EasterSunday.py

#  Description:

#  Student Name:

#  Student UT EID:

#  Course Name: CS 309

#  Unique Number: 50595

#  Date Created:

#  Date Last Modified: