http://groups.google.com/group/algogeeks/browse_thread/thread/f56bac6...
The best solution given there is O(n) with only constant additional storage. On Aug 15, 1:51 pm, Debajyoti Sarma <sarma.debajy...@gmail.com> wrote: > so what was the optimal solution found in the previous discussion?? give a > link > I don't remember the name of the thread...so only i posted this. > > On 8/15/10, Gene <gene.ress...@gmail.com> wrote: > > > > > In fact this solution was suggested (without code) in the original > > discussion. > > > It's O(n^2). > > > You're only re-ordering a constant number (4) of elements in each > > recursive pass, and each pass requires O(n) time to execute. You also > > need to assume your compiler will remove the tail recursion. > > Otherwise it will also require O(n) space, which misses the whole > > point of the problem. > > > On Aug 15, 12:29 pm, Debajyoti Sarma <sarma.debajy...@gmail.com> > > wrote: > >> Array of 2n length is given {a1,a2,a3,...,an,b1,b2,b3,...,bn} > >> we have to make the array like as {a1,b1,a2,b2,a3,b3,...,an,bn} > >> without using extra buffer space. > >> here a solution i came up withhttp://codepad.org/ub5Ie4sI > >> I know this was discussed before . > >> But i want to know the time complexity of the code i have given(i m > >> confused) > > > -- > > You received this message because you are subscribed to the Google Groups > > "Algorithm Geeks" group. > > To post to this group, send email to algoge...@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 algoge...@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.