The sum of the first natural numbers is equal to . Suppose that you are given a list t of length where the list contains only integer values. Write the recursive helper function to_triangular_grid_impl(t, n) where t is a list as described in the previous paragraph and n is the value of as described in the previous paragraph. The function returns a list of sublists where the first sublist contains the first elements of t, the second sublist contains the next elements of t, the third sublist contains the next elements of t, and so on the sublist contains the last element of t You should not call the function to_triangular_grid_impl directly; instead call the function to_triangular_grid(t) which computes the value of given a list t. See the assignment module a3 where to_triangular_grid(t) is already given to you. Some examples of what the function should return are: t

a  social news website  is an  internet  website  that features  user-posted stories. such stories are ranked based on popularity, as voted on by other users of the site or by website administrators. users typically comment online on the news posts and these comments may also be ranked in popularity. since their emergence with the birth of  web 2.0, social news sites have been used to link many types of information, including news, humor, support, and discussion. all such websites allow the users to submit content and each site differs in how the content is moderated. on the  slashdot  and  fark  websites,  administrators  decide which articles are selected for the front page. on  reddit  and  digg, the articles that get the most votes from the community of users will make it to the front page. many social news websites also feature an online comment system, where users discuss the issues raised in an article. some of these sites have also applied their voting system to the comments, so that the most popular comments are displayed first. some social news websites also have a  social networking  function, in that users can set up a user profile and follow other users' online activity on the website.