For a Fibonacci heap H, we want to support a new operation changeKey(H, x, k) that changes the key of x to the value k. Give an efficient implementation of changeKey(), and analyze the amortized running time of your implementation for the cases in which k is greater than or less than the current key of x.

You wanted to look up information about alzheimer's, but you were unsure if it was spelled "alsheimer's" or "alzheimer's." which advanced search strategy would be useful? a) a boolean search b) using a wild card in your search c) trying different search engines d) doing a search for "alsheimer's not alzheimer's" asap. ill give brainlist.