@Saurabh Your formula is incorrect. for input : 5 2 the answer should be 5 but your program gives 12 as output.
On Jun 19, 11:35 pm, abc abc <may.i.answ...@gmail.com> wrote: > @above Better you ask it on spoj forum > > On Sun, Jun 19, 2011 at 7:27 PM, saurabh singh <saurab...@gmail.com> wrote: > > I am getting WA for this problem.I dont know whether its case of overflow > > or I have come up with a wrong formula, > >https://www.spoj.pl/problems/CHAIR/ > > I am coding in python so I dont think there is probblem of overflow. > > > def f(n): > > if n<0: > > return 0 > > if n==0: > > return 1 > > i=n > > prod=1 > > while i>0 : > > prod*=i > > i-=1 > > return prod > > n=input() > > k=input() > > if k==1: > > print n > > elif 2*k>n: > > print 0 > > else : > > x=f(n-1) > > y=f(n-k)*f(k) > > print (x-y)%1000000003 > > > -- > > Saurabh Singh > > B.Tech (Computer Science) > > MNNIT ALLAHABAD > > > -- > > You received this message because you are subscribed to the Google Groups > > "Algorithm Geeks" group. > > To post to this group, send email to algogeeks@googlegroups.com. > > To unsubscribe from this group, send email to > > algogeeks+unsubscr...@googlegroups.com. > > For more options, visit this group at > >http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
