An idea is to start with a heap of size k. Its tricky how to keep track of the start and end indices of the smallest length. Do not enter a duplicate element in the heap.
-- 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/-/XbqIrf1Z6MUJ. 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.