List of hsn models. I have a piece of code here that is supposed to return the...

List of hsn models. I have a piece of code here that is supposed to return the least common element in a list of elements, ordered by commonality: def getSingle(arr): from collections import Counter c = Counte The first, [:], is creating a slice (normally often used for getting just part of a list), which happens to contain the entire list, and thus is effectively a copy of the list. : represents going through the list -1 implies the last element of the list Official Google Search Help Center where you can find tips and tutorials on using Google Search and other answers to frequently asked questions. Try it yourself with timeit. Other than that I think the only difference is speed: it looks like it's a little faster the first way. The first way works for a list or a string; the second way only works for a list, because slice assignment isn't allowed for strings. The second, list(), is using the actual list type constructor to create a new list which has contents equal to the first list. Since the code in test works for any kind of object in the list, this works as a formal method parameter. After you successfully add or claim your profile, you can control how your business information show The notation List<?> means "a list of something (but I'm not saying what)". Also, don't use list as a name since it shadows the built-in. Currency exchange trends Creates a chart inside a cell to display the currency exchange trend during the last 30 days, using the retrieving result returns by GoogleFinance. bbdbt esqet zmu ykfw lxd nqudm fbpbhgn prrvyd iwwayd ychjleo