doomsday.txt

Major Doomsdays:
 4/4, 6/6, 8/8, 10/10, 12/12, 9/5, 5/9, 7/11, 11/7
 3/1, or 4/1 for leap year
 28/2, or 29/2 for leap year
 14th mrach/ pi day

doomsday for years:
 2000:Tue
 2001:Wed
 2002:Thrs
 2003:Fri
 2004:Sun
 leap year go forward an extra day

 *Calculation to find doomsday of a particular year = doomsday of refrenced year + (choosen year - refrenced year) + (choosen year - refrenced year)/4{ignore fractions}

Day and their given number
 sunday = 0
 monday = 1
 tuesday = 2
 wednesday = 3
 thursday = 4
 friday = 5
 saturday = 6

century doomsdays
 1700: sunday       --     
 1800: friday       --  same pattern in following years 
 1900: wednesday    --
 2000: tuesday      --

 2100: sunday
 2200: friday
 2300: wednesday
 2400: tuesday

shortcurt for years: all these are zero
 0, 28, 56, 84

shortcut:( dont understnad thsi part yet)
 0: 0
 12: 1
 24: 2
 36: 3
 48: 4
 60: 5
 72: 6
 84: 7
 96: 8


 ONE EXAMPLE:

 18th june 1976
 FIrst part:

 1976: 72 is 6(from line 47) + 4(from 76-72) + 1(leap year from 4/4) + 
    3(from the century of 19 and doomsday for 1900 is wed(from line 29) 
    and wed is 3(from line 21))
    = 14 = 0(since 14 is a multiple of 7)

thus doomsday for 1976 is sunday(from line 18)

now for 18th june:
closest special date to 18th june is 6/6.
now since 6 + 12 = 18(dates)
0+12(days) = will be the day on 18th june
0+12 = 0+5(from 12-7) = 5 which is friday

thsu 18th june 1976 is friday