@piyush : your solution will fail for the case a={5,1,1} b={3,3,1} On Sun, May 20, 2012 at 11:54 AM, Piyush Khandelwal < piyushkhandelwal...@gmail.com> wrote:
> Hiii!! I have some idea about the solution. Please notify me if i am > wrong.... > > a= [ 4,3,5 ] and b= [ 3,5,4 ] > diff=0; > for (i=0; i<n;i++) > { diff= diff+a[i]-b[i]; > } > if diff == 0 > print: permutation > else > print: not permutation > > > > > > On 20 May 2012 07:2 0, Dave <dave_and_da...@juno.com> wrote: > >> @Harshit: These are a few unanswered questions that came to mind when I >> read your solution attempt: What do you do with negative elements? What is >> the -12th prime number? How do you deal with overflow in the cases where >> you have a lot of large prime numbers and the product exceeds your native >> data types? >> >> Dave >> >> On Saturday, May 19, 2012 2:29:52 PM UTC-5, harshit pahuja wrote: >> >>> given 2 unsorted integer arrays a and b of equal size. Determine if b is >>> a permutation of a. Can this be done in O(n) time and O(1) space ? >>> >>> >>> >>> >>> please help me with my solution >>> >>> >>> suppose a -- 3 5 4 >>> b -- 4 3 5 >>> >>> now we replace a[i] with a[i]..th prime number and b with b[i] .. th >>> prime number >>> >>> now array a becomes 5 11 7 >>> array b becomes 7 5 11 >>> >>> now we take product of elements of array a and do the same with array b >>> elements >>> if product is equal then b is a permutation of a >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To view this discussion on the web visit >> https://groups.google.com/d/msg/algogeeks/-/WEW0M5VUUVEJ. >> >> To post to this group, send email to algogeeks@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. >> > > > > -- > *Piyush Khandelwal*** > Mobile No: 91-8447229204 > 91-9808479765 > > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to algogeeks@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. > -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@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.