initially compute xor of all the values from 0 to n in a variable Temp so temp = 0^1^2........^n let result is used to store the missing number for each ith bit of missing number where i = 0-31 we can find it as following ith bit of result = (xor of all ith bits of values of array) xored with (ith
bit of temp) On Thu, Jun 23, 2011 at 12:25 AM, oppilas . <[email protected]>wrote: > Is the array sorted? > In A[1..n], one number is missing from 0 to N. So, > A[5]={--INF, 2,1,3,0} is a valid case? > > > On Wed, Jun 22, 2011 at 11:51 PM, RollBack <[email protected]> wrote: > >> An array A[1...n] contains all the integers from 0 to n except for one >> number which is >> missing. In this problem, we cannot access an entire integer in A with >> a single opera- >> tion. The elements of A are represented in binary, and the only >> operation we can use >> to access them is “fetch the jth bit of A[i]”, which takes constant >> time. Write code to >> find the missing integer. Can you do it in O(n) time? >> _ >> _ _____________________________________________ >> >> Rajeev N Bharshetty >> I Blog @ www.opensourcemania.co.cc >> >> -- >> 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. > -- Sunny Aggrawal B-Tech IV year,CSI Indian Institute Of Technology,Roorkee -- 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.
