Why would xoring fail? Saurabh Singh B.Tech (Computer Science) MNNIT blog:geekinessthecoolway.blogspot.com
On Wed, Jan 4, 2012 at 9:56 AM, SAMM <[email protected]> wrote: > I think this may works . needs verification. > > For the given array (3 5 2 5 2) > For +ve number (N) take the sum from 1 to N . > For -ve number (N) take the sum from -1 to N . > And take take the cumulative sum ... For this array it comes 42 . > Similarly check the sum for the second array . If it is same then we r > done . > > On 1/3/12, atul anand <[email protected]> wrote: > > There are two arrays. > > int arr1[5] = { 3, 5, 2, 5, 2} > > int arr2[5] = { 2, 3, 5, 5, 2} > > The arrays will be called similar if they contain same number of elements > > equally. > > Write the pseudo code to check this ? > > not allowed to use sorting and hashtable. > > > > naive approach O(n^2) > > > > NOTE: Xoring , sum wont work. > > > > we can use O(n) space , using index as elements in the array. but if it > has > > negative number then it will fail for eg arr1 has -1,... and arr2 has > > 1,..... > > > > -- > > 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. > > > > > > > -- > Somnath Singh > > -- > 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.
