Dan Bishop wrote: > On Feb 15, 10:24 am, nexes <[EMAIL PROTECTED]> wrote: >> Alright so me and my friend are having argument. >> >> Ok the problem we had been asked a while back, to do a programming >> exercise (in college) >> That would tell you how many days there are in a month given a >> specific month. >> >> Ok I did my like this (just pseudo): >> >> If month = 1 or 3 or etc .... >> noDays = 31 >> Elseif month = 4 or 6 etc .... >> noDays = 30 >> Else >> noDays = 29 >> (we didn't have to take into account a leap year) >> >> He declared an array and assigned the number of days in a month to its >> own element in an array. Now >> I realise that in this example it would not make a difference in terms >> of efficiency, but it is my belief that if >> there is more data that needed to be assigned(i.e. a couple megs of >> data) it would be simpler (and more efficient) to >> do a compare rather then assigning all that data to an array, since >> you are only going to be using 1 value and the rest >> of the data in the array is useless. >> >> What are everyone else's thoughts on this? > > days_in_month = lambda m: m - 2 and 30 + bool(1 << m & 5546) or 28
Elegant, but the 5546 is way too magical for readability. regards Steve -- Steve Holden +1 571 484 6266 +1 800 494 3119 Holden Web LLC http://www.holdenweb.com/ -- http://mail.python.org/mailman/listinfo/python-list
