@Ashish: My answer is not the same as Catalan numbers. They obey (2*N) choose N - (2*N) choose (N+1), which is less than my answer.
Dave On Mar 2, 6:55 am, Ashish Goel <[email protected]> wrote: > Dave's answer is also same as catalan number, i donot understand why the > problem is different from catalan number sunny... > > Best Regards > Ashish Goel > "Think positive and find fuel in failure" > +919985813081 > +919966006652 > > On Wed, Mar 2, 2011 at 3:03 PM, sunny agrawal <[email protected]>wrote: > > > > > @ashish > > its not that problem, read the question carefully > > > On Wed, Mar 2, 2011 at 2:32 PM, Ashish Goel <[email protected]> wrote: > > >> refer catalan numbers > > >> Best Regards > >> Ashish Goel > >> "Think positive and find fuel in failure" > >> +919985813081 > >> +919966006652 > > >> On Wed, Mar 2, 2011 at 2:00 AM, bittu <[email protected]>wrote: > > >>> Imagine a robot sitting on the upper left hand corner of an NxN grid. > >>> The robot can only move in two directions: right and down. How many > >>> possible paths are there for the robot? > > >>> FOLLOW UP > >>> Imagine certain squares are “off limits”, such that the robot can not > >>> step on them. Design an algorithm to get all possible paths for the > >>> robot. > > >>> Thanks & Regards > >>> Shashank Mani > > >>> -- > >>> You received this message because you are subscribed to the Google Groups > >>> "Algorithm Geeks" group. > >>> To post to this group, send email to [email protected]. > >>> To unsubscribe from this group, send email to > >>> [email protected]. > >>> 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 [email protected]. > >> To unsubscribe from this group, send email to > >> [email protected]. > >> For more options, visit this group at > >>http://groups.google.com/group/algogeeks?hl=en. > > > -- > > Sunny Aggrawal > > B-Tech IV year,CSI > > Indian Institute Of Technology,Roorkee > > > -- > > You received this message because you are subscribed to the Google Groups > > "Algorithm Geeks" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit this group at > >http://groups.google.com/group/algogeeks?hl=en.- Hide quoted text - > > - Show quoted text - -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
