@Patidarachat: Please explain how to use the selection algorithm in the presence of the restriction that you can't hold all of the data in memory at once.
Dave On Mar 22, 3:55 am, "patidarc...@gmail.com" <patidarc...@gmail.com> wrote: > please check this also > Selection_algorithm <http://en.wikipedia.org/wiki/Selection_algorithm> > > On Tue, Mar 22, 2011 at 10:13 AM, Rajeev Kumar > <rajeevprasa...@gmail.com>wrote: > > > > > > > > >http://flexaired.blogspot.com/2011/03/big-file-containing-billions-of... > > > On Mon, Mar 21, 2011 at 4:05 AM, Natansh Verma > > <natansh.ve...@gmail.com>wrote: > > >> @dave -was this a constraint since the beginning? In case it was, I am > >> sorry I didn't notice. > > >> In that case, the heap method ought to work better. I dont think the > >> quicksort method will work. > > >> Sent from my iPhone > > >> On 20-Mar-2011, at 23:00, Dave <dave_and_da...@juno.com> wrote: > > >> > @Natansh: How do you do this with the constraint that your RAM is so > >> > small that you cannot accomodate all of the numbers at once? > > >> > Dave > > >> > On Mar 20, 9:04 am, Natansh Verma <natansh.ve...@gmail.com> wrote: > >> >> There's another way... use the partitioning method for quicksort to > >> find the > >> >> k smallest elements. Then it should take expected time as O(n + klogk). > >> >> Plus, it is in-place. > > >> >> On Wed, Mar 16, 2011 at 7:26 PM, asit <lipu...@gmail.com> wrote: > >> >>> I agree with munna > > >> >>> -- > >> >>> 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.-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 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. > > > -- > > Thank You > > Rajeev Kumar > > > -- > > 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 > Rajesh Patidar~- 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 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.
