http://stackoverflow.com/questions/6182488/median-of-5-sorted-arrays this link will help m damn sure. Sanju :)
On Sun, Aug 21, 2011 at 10:48 AM, Sanjay Rajpal <srn...@gmail.com> wrote: > see sum is total no.of elements in three arrays. > > the question is middle element in the merged array. > > so the middle element would be at index sum/2. > Sanju > :) > > > > On Sun, Aug 21, 2011 at 10:46 AM, Puneet Chawla <puneetchawla...@gmail.com > > wrote: > >> @sanjay why you have compared k with sum/2 is it a general solution..??? >> >> >> On Sun, Aug 21, 2011 at 11:11 PM, vaibhav shukla <vaibhav200...@gmail.com >> > wrote: >> >>> @sanjay : yes this is one approach . just doing this and keeping track of >>> the smaller element and wen k is sum/2, the minimum element of the middle on >>> >>> >>> true. but any other approach apart from this and wat if the total length >>> is even, i.e u have to give two middle elements then >>> >>> >>> On Sun, Aug 21, 2011 at 11:09 PM, vaibhav shukla < >>> vaibhav200...@gmail.com> wrote: >>> >>>> @puneet : but u cant use extra memory >>>> >>>> >>>> On Sun, Aug 21, 2011 at 11:08 PM, Sanjay Rajpal <srn...@gmail.com>wrote: >>>> >>>>> Take three pointers to the beginning of each array say i,j,k. >>>>> >>>>> Now let sum = len a +len b + len c. >>>>> k=0 >>>>> >>>>> now start from the beginning, compare elements at indexes i,j,k. >>>>> which ever is smaller, increment that index and k, continue till k >>>>> becomes sum/2. >>>>> >>>>> when k becomes sum/2, this element will be middle element of the merged >>>>> array. >>>>> >>>>> I think it could also be done in O(log m + log n + log p), where m, n,p >>>>> are lengths of the arrays. >>>>> >>>>> Correct me if m wrong :) >>>>> Sanju >>>>> :) >>>>> >>>>> >>>>> >>>>> On Sun, Aug 21, 2011 at 10:34 AM, Puneet Chawla < >>>>> puneetchawla...@gmail.com> wrote: >>>>> >>>>>> Here by just applying merge on these array as they are sorted and >>>>>> calculate the middle element..Am i rt..??? >>>>>> >>>>>> >>>>>> On Sun, Aug 21, 2011 at 10:59 PM, vaibhav shukla < >>>>>> vaibhav200...@gmail.com> wrote: >>>>>> >>>>>>> given three sorted arrays not necessary of same length (length is >>>>>>> given) >>>>>>> we have to determine the middle element such that the element will >>>>>>> be the middle one of the such an array which will be formed if all three >>>>>>> given arrays are merged in >>>>>>> sorted order. >>>>>>> input :- arr1 : 1,3,5,7 >>>>>>> arr2 : 6,9,12,15,18 >>>>>>> arr3 : 2,4,14,20 >>>>>>> output : 7 , as if we merge the arrays in sorted order then 7 will be >>>>>>> the middle element of that merged array. >>>>>>> note : if merged array is of even length then there will be two >>>>>>> middle element. >>>>>>> >>>>>>> ALSO YOU CANNOT USE EXTRA MEMORY. >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> best wishes!! >>>>>>> Vaibhav >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> 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. >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> With regards >>>>>> ............ >>>>>> Puneet Chawla >>>>>> Computer Engineering Student >>>>>> NIT Kurukshetra >>>>>> >>>>>> -- >>>>>> 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. >>>>> >>>> >>>> >>>> >>>> -- >>>> best wishes!! >>>> Vaibhav >>>> MCA >>>> >>>> >>> >>> >>> -- >>> best wishes!! >>> Vaibhav >>> MCA >>> >>> -- >>> 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. >>> >> >> >> >> -- >> With regards >> ............ >> Puneet Chawla >> Computer Engineering Student >> NIT Kurukshetra >> >> -- >> 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. 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