yes n/4 swaps are required. +1 aditya kumar On Sun, Sep 4, 2011 at 6:32 PM, aditya kumar <[email protected]>wrote:
> swap n/2-1 with n/2+1 , and then n/2-3 with n/2+3 till we reach n-1 . > so we need n/4 swaps . > > > On Sun, Sep 4, 2011 at 5:28 PM, Anup Ghatage <[email protected]> wrote: > >> That's interesting. >> >> when n = 3 >> >> We have been given this :F F F | E E E >> >> Swap the middle element and it becomes: F E F | E F E >> >> Which is what you want, but when n = 5 >> >> F F F F F | E E E E E >> >> And you swap the middle element it becomes: F F E F F | E E F E E >> >> So the same startegy doesn't apply. >> >> But if you do with from the center for every alternate element, it works >> >> for n = 3 >> >> F F F | E E E > F F E | F E E > E F E | E F E >> >> It also works for n = 5 etc. So, It is a more uniform solution if you may. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> 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 [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- Thx, --Gopi -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
