For 1. sum the numbers in the file, subtract it from sum of first 4 billion numbers.
On Thu, Jun 9, 2011 at 3:44 PM, Navneet Gupta <[email protected]> wrote: > The answer to second question is simple. XORing all the elements > should do it for you. > > > On Thu, Jun 9, 2011 at 3:15 PM, Dumanshu <[email protected]> wrote: > > Q1. I have a file in which there are supposed to be 4 billion > > numbers, > > starting from 1 to 4,000,000,000 but unfortunately one number is > > missing, > > i.e there are only 3,999,999,999 numbers, I need to find the missing > > number. > > > > > > Q2. I have an array consisting of 2n+1 elements. n elements in it are > > married, i.e they occur twice in the array, however there is one > > element > > which only appears once in the array. I need to find that number in a > > single pass using constant memory. {assume all are positive numbers} > > Eg :- 3 4 1 3 1 7 2 2 4 > > Ans:- 7 > > > > -- > > 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. > > > > > > > > -- > --Navneet > > -- > 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. > > -- Regards, Vipul -- 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.
