The Python algorithm for finding Jehovah's Witnesses' Memorial of Jesus' Death

The Memorial date algorithm looks like this:

def memorial(y):
    """
    Returns the date for Jehovah's Witnesses' Memorial of Christ's Death, the only holiday of Jehovah Witnesses,
    who don't celebrate Easter nor Christmas nor birthdays (which they believe to be of pagan origin).
    This is originally based on algorithm on the BCP found in https://almanac.oremus.org/easter/computus/.
    """
    g = y%19+1
    if y>1582:
        s = (y-1600)//100-(y-1600)//400
        l = (8*(y//100-14))//25
        p = (3-11*g+s-l)%30
        if p == 29 or (p == 28 and g > 11):
            p -= 1
    else:
        p = (26-11*g)%30
    
    m = p-1

    if m<11: #March
        day = m+21
        month = 3
    else: # April
        day = m-10
        month = 4
    return day, month

y = int(input("Insert a year: "))

memdate = memorial(y)

print(f"The Memorial is in {memdate[0]}/{memdate[1]}/{y}.")

PS: I am not a Jehovah’s Witness. I have only attended the Memorial once, in March 24, 2024.

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