Thanks Sharad / Debajyoti for the answer and explanation! On May 31, 5:39 pm, Debajyoti Sarma <sarma.debajy...@gmail.com> wrote: > because, > only the perfect square number has odd number of factors. > so, toggling will make those door to remain open. > Like open-close-open-close-open (odd no of toggle) > > On 5/31/10, sharad kumar <aryansmit3...@gmail.com> wrote: > > > > > @veera:only the perfect square numbers will be open > > 1,4,9,16,25...100 > > > On Mon, May 31, 2010 at 9:37 AM, Veer Sharma > > <thisisv...@rediffmail.com>wrote: > > >> Hi Friends, > > >> Here's a problem from my side: > > >> 100 rooms are in a prison. All doors are closed initially. A policeman > >> on round i will toggle the doors that are in multiples of i. > >> After 100 rounds, which doors will be open? > > >> Lets try get a solution. > > >> Thanks, > >> Veer > > >> -- > >> 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. > > > -- > > yezhu malai vaasa venkataramana Govinda Govinda > > > -- > > 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.- Hide quoted text - > > - Show quoted text -
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