Hi,
Can anybody help me in solving the following problem: Convert a binary search tree in to a doubly linked list in level order without using extra space : BST 1 / \ 2 3 / \ / \ 4 5 6 7 in to double linked list as: 1==2==3==4==5==6==7 I can do it using level order traversal using a queue, but the problem says no extra space should be used, I tried a lot but can't able to figure out. Thanks, M. Vamsee -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algoge...@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.