Navneet, For 2nd problem, i need a clarification, whether the Kth number is wrt mathematical ordering of numbers or the kth number is wrt to the order in which the number are input ?
On Wed, Feb 6, 2013 at 10:00 AM, navneet singh gaur < navneet.singhg...@gmail.com> wrote: > nice algo ankit, so it will be nlogn using O (n) space only. What abt > 2nd Q., which have a big online stream. > > On Mon, Feb 4, 2013 at 9:30 PM, kumar ankit <k.anki...@gmail.com> wrote: > > For 1: > > i think you can use sorting, sort the array and keep the indices of the > > numbers in the sorted list. > > Now traverse the sorted list and in the sorted list you need to find the > > unique number with the > > minimum index which is easy to find. > > > > Eg: Array: 5 3 1 2 4 1 4 > > Indices: 0 1 2 3 4 5 6 > > > > > > After sorting : Array: 1 1 2 3 4 4 5 > > Indices: 2 5 3 1 4 6 1 > > > > Now you can see the unique number with lowest index is 3(index=1). So , > you > > have your answer. > > > > > > On Mon, Feb 4, 2013 at 3:45 PM, navneet singh gaur > > <navneet.singhg...@gmail.com> wrote: > >> > >> 1. Given a array,find a first unique integer. > >> 2. Integers are coming as online stream,have to find a kth unique > integer > >> till now. > >> > >> For 1. > >> > >> Even we cannot use sorting for solving this as if we sort it than our > >> first number which is non-repetitive changes. > >> > >> The best I am able to do is nlogn using a space of O( n ). > >> > >> For 2. No idea > >> > >> -- > >> You received this message because you are subscribed to the Google > Groups > >> "Algorithm Geeks" group. > >> To unsubscribe from this group and stop receiving emails from it, send > an > >> email to algogeeks+unsubscr...@googlegroups.com. > >> For more options, visit https://groups.google.com/groups/opt_out. > >> > >> > > > > > > > > > > -- > > Kumar Ankit > > Senior Undergraduate > > Department of Computer Engineering > > Institute of Technology > > Banaras Hindu University > > Varanasi > > Ph: +91 9473629892 > > > > -- > > You received this message because you are subscribed to the Google Groups > > "Algorithm Geeks" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to algogeeks+unsubscr...@googlegroups.com. > > For more options, visit https://groups.google.com/groups/opt_out. > > > > > > > > -- > navneet singh gaur > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to algogeeks+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- Kumar Ankit Senior Undergraduate Department of Computer Engineering Institute of Technology Banaras Hindu University Varanasi Ph: +91 9473629892 -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To unsubscribe from this group and stop receiving emails from it, send an email to algogeeks+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
