My bad...Sorry :(..Yes it certainly was not right On Wed, Jun 20, 2012 at 8:56 PM, Navin Kumar <algorithm.i...@gmail.com>wrote:
> @Saurabh:i was wrong in deciding space complexity. Yes, your algo will > take O(1) time but you have to enqueue elements in reverse order.Not in the > order you fetched. Think about it :). Then you have to take stack or some > other data structure. > > > On Wed, Jun 20, 2012 at 8:40 PM, saurabh singh <saurabh.n...@gmail.com>wrote: > >> How ?? >> I am asking to manipulate the same queue. >> Dequeue n-1 elements and enqueue them in order to you take out to the >> same queue..Where is extra space involved ? >> >> >> On Wed, Jun 20, 2012 at 8:36 PM, Navin Kumar <algorithm.i...@gmail.com>wrote: >> >>> @saurabh : i want solution with space complexity of O(1) . your solution >>> is right but it takes O(n) space. >>> >>> >>> On Wed, Jun 20, 2012 at 8:28 PM, saurabh singh >>> <saurabh.n...@gmail.com>wrote: >>> >>>> Why will my proposed solution not work for you ??? >>>> >>>> >>>> On Wed, Jun 20, 2012 at 8:19 PM, Navin Kumar >>>> <algorithm.i...@gmail.com>wrote: >>>> >>>>> @Kirubakaran : still space complexity is O(n) due to stack.Can it be >>>>> solved in space complexity O(1). >>>>> >>>>> >>>>> On Wed, Jun 20, 2012 at 8:00 PM, Kirubakaran D < >>>>> kirubakara...@gmail.com> wrote: >>>>> >>>>>> You could use recursion. >>>>>> >>>>>> def reverse_Q q >>>>>> if !q.isEmpty? >>>>>> el = q.dequeue >>>>>> nQ = reverse_Q(q) >>>>>> nQ.enqueue el >>>>>> return nQ >>>>>> end >>>>>> return q >>>>>> end >>>>>> >>>>>> >>>>>> >>>>>> On Wednesday, June 20, 2012 6:57:23 PM UTC+5:30, Navin Kumar wrote: >>>>>>> >>>>>>> Use only standard operation of Queue like: EnQueue, DeQueue, >>>>>>> IsEmptyQueue etc >>>>>>> >>>>>>> On Wed, Jun 20, 2012 at 6:50 PM, amrit harry < >>>>>>> dabbcomput...@gmail.com> wrote: >>>>>>> >>>>>>>> can we create other methods or we have to use only enqueue and >>>>>>>> dequeue...? if yes then simply >>>>>>>> for(i=0;i<=n/2;i++) >>>>>>>> swap(i,n-i); >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On Wed, Jun 20, 2012 at 6:46 PM, Navin Kumar < >>>>>>>> algorithm.i...@gmail.com> wrote: >>>>>>>> >>>>>>>>> @Saurabh: queue will be remain unchanged according to your >>>>>>>>> algorithm. Because if you will delete an element from front and add >>>>>>>>> at rear >>>>>>>>> no change will be there. After n iteration front will be pointing to >>>>>>>>> same >>>>>>>>> element and rear will also point to same element. >>>>>>>>> >>>>>>>>> Correct me if i am wrong. :) >>>>>>>>> >>>>>>>>> >>>>>>>>> On Wed, Jun 20, 2012 at 6:39 PM, saurabh singh < >>>>>>>>> saurabh.n...@gmail.com> wrote: >>>>>>>>> >>>>>>>>>> count the size of queue : O(n) >>>>>>>>>> loop for n and do remove and add in queue : O(n) >>>>>>>>>> >>>>>>>>>> Total : O(n) >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> On Wed, Jun 20, 2012 at 6:34 PM, Navin Kumar < >>>>>>>>>> algorithm.i...@gmail.com> wrote: >>>>>>>>>> >>>>>>>>>>> How to reverse a Queue . >>>>>>>>>>> >>>>>>>>>>> Constraints: Time complexity O(n). space complexity: O(1) >>>>>>>>>>> >>>>>>>>>>> -- >>>>>>>>>>> You received this message because you are subscribed to the >>>>>>>>>>> Google Groups "Algorithm Geeks" group. >>>>>>>>>>> To view this discussion on the web visit >>>>>>>>>>> https://groups.google.com/d/**msg/algogeeks/-/kepls-8qRwgJ<https://groups.google.com/d/msg/algogeeks/-/kepls-8qRwgJ> >>>>>>>>>>> . >>>>>>>>>>> To post to this group, send email to algogeeks@googlegroups.com. >>>>>>>>>>> To unsubscribe from this group, send email to >>>>>>>>>>> algogeeks+unsubscribe@**googlegroups.com<algogeeks%2bunsubscr...@googlegroups.com> >>>>>>>>>>> . >>>>>>>>>>> For more options, visit this group at http://groups.google.com/* >>>>>>>>>>> *group/algogeeks?hl=en<http://groups.google.com/group/algogeeks?hl=en> >>>>>>>>>>> . >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> Thanks & Regards, >>>>>>>>>> Saurabh >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> 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+unsubscribe@**googlegroups.com<algogeeks%2bunsubscr...@googlegroups.com> >>>>>>>>>> . >>>>>>>>>> For more options, visit this group at http://groups.google.com/** >>>>>>>>>> group/algogeeks?hl=en<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+unsubscribe@**googlegroups.com<algogeeks%2bunsubscr...@googlegroups.com> >>>>>>>>> . >>>>>>>>> For more options, visit this group at http://groups.google.com/** >>>>>>>>> group/algogeeks?hl=en<http://groups.google.com/group/algogeeks?hl=en> >>>>>>>>> . >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> Thanks & Regards >>>>>>>> Amritpal singh >>>>>>>> >>>>>>>> -- >>>>>>>> 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+unsubscribe@**googlegroups.com<algogeeks%2bunsubscr...@googlegroups.com> >>>>>>>> . >>>>>>>> For more options, visit this group at http://groups.google.com/** >>>>>>>> group/algogeeks?hl=en<http://groups.google.com/group/algogeeks?hl=en> >>>>>>>> . >>>>>>>> >>>>>>> >>>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "Algorithm Geeks" group. >>>>>> To view this discussion on the web visit >>>>>> https://groups.google.com/d/msg/algogeeks/-/qmLUaTNJns8J. >>>>>> >>>>>> 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. >>>>> >>>> >>>> >>>> >>>> -- >>>> Thanks & Regards, >>>> Saurabh >>>> >>>> -- >>>> 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. >>> >> >> >> >> -- >> Thanks & Regards, >> Saurabh >> >> -- >> 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. > -- Thanks & Regards, Saurabh -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. 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