Re: Leap Year

["Jack Mullins" <jmullins@xxxxxxxxxxx>]

A leap year is a year that is divisible by 4 but not 100 unless it is
divisible by 400.



>Hi All,
>
> I want to know the fool-proof method of determining the leap year
>technique. My earlier logic was :
>
>Divide CCYY by 400.
>If divisible then it is leap year, else
>Divide CCYY by 100.
>If divisible then it is leap year, else
>Divide CCYY by 4.
>If divisible, then it is leap year, else it is not a leap year.
>
>But this is not working for years 1900, 1800, 1700, 2100...etc. Sometime
back
>someone in a meeting pointed out that though 1900...etc are divisible by
100, 4
>they are not leap years!!! I heard someone saying that for every 400 turns
of
>the century (means years with 1600, 2000, 2400...etc), they are leap years
and
>all other 100s are not (1900, 1800..etc). With this variation in mind, I am
>coming out with a new algorithm that says :
>
>Divide CCYY by 400.
>If divisible then it is a leap year, else
>Divide CCYY by 4
>If divisible then it is a leap year, else it is not a leap year.
>
> I want to know from the list, whether this new variation is the
>fool-proof technique. If not, I would like to know the one.
>Thanx in advance for any suggestions.
>
>Rgds
>Vg
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