@ abv i want less then O(n) On Mon, Jul 5, 2010 at 8:14 PM, mohit ranjan <shoonya.mo...@gmail.com>wrote:
> @ Jalaj > > > > suppose the matrix is > > 0 1 3 7 > 2 4 5 8 > 6 9 10 11 > 8 12 13 14 > > element to search=9; > > start at right-top element i.e curr_elem=7 > 9>curr_elem, move down > curr_elem=8 > 9>curr_elem, move down > curr_elem=11 > 9<curr_elem, move left > curr_elem=10 > 9<curr_elem, move left > > you reach 9, in O(n) time... > > > hope is't clear now :) > > Mohit > > > > > On Sun, Jul 4, 2010 at 3:13 PM, jalaj jaiswal > <jalaj.jaiswa...@gmail.com>wrote: > >> @amir ..could you please provide a rough pseudocode for it... :-? >> >> >> On Sun, Jul 4, 2010 at 3:12 AM, Amir hossein Shahriari < >> amir.hossein.shahri...@gmail.com> wrote: >> >>> @jalaj: oops! i'm sorry but by diameter i meant diagonal! >>> >>> binary search on the diagonal 0 4 10 14 the result is 4<9<10 >>> so the matrix that ends with 4: >>> 0 1 >>> 2 4 >>> and the matrix that starts with 10: >>> 10 11 >>> 13 14 >>> can't have 9 in them >>> so we continue the search in >>> 3 7 >>> 5 8 >>> and >>> 6 9 >>> 8 12 >>> >>> applying the search on >>> 3 7 >>> 5 8 >>> we see that 8<9 which is the biggest element of the matrix >>> so this can't have 9 in it >>> and the search in >>> 6 9 >>> 8 12 >>> yields that 6<9<12 >>> so the result would be in 8 or 9 >>> >>> -- >>> 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<algogeeks%2bunsubscr...@googlegroups.com> >>> . >>> For more options, visit this group at >>> http://groups.google.com/group/algogeeks?hl=en. >>> >> >> >> >> -- >> With Regards, >> Jalaj Jaiswal >> +919026283397 >> B.TECH IT >> IIIT ALLAHABAD >> >> -- >> 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<algogeeks%2bunsubscr...@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<algogeeks%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- With Regards, Jalaj Jaiswal +919026283397 B.TECH IT IIIT ALLAHABAD -- 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.
