Search engines often index their collections of documents so that they can easily return an ordered set of documents that contain a given query word, w. Such a data structure is known as an inverted file. In order to construct an inverted file, we might start with a set of n triples of the form, (w, d, r), where w is a word, d is an identifier for a document that contains the word w, and r is a rank score for the popularity of the document d. Often, the next step is to sort these triples, ordered first by w, then by r, and then by d. Assuming each of the values, w, d, and r, are represented as integers in the range from 1 to 3n, describe a linear-time algorithm for sorting a given set of n such triples.

Respecting individual differencespre-test active2time remaining48: 47nina is exploring her gender identity and sexual orientationwhich best describes how the role of the media might influence nina during this time in her life? the media would her decide because television shows are always unbiased about gender issues and do notstereotypethe media could make things difficult for her because television sometimes portrays rigid ideas about gender roles.all forms of media will her decide because the media always portrays rigid ideas about gender roles.all forms of media will make things easy for her because the media always portrays open and fair ideas about gender roles.

This first part of the film shows the early history of motion pictures. how accurate do you think the portrayal of the early motion picture industry is? why? is historical accuracy important in films and theatre productions? explain. in the scene where don is going to the party (starting at time code 14: 51), we see a street scene as he first rides with cosmo and then with kathy. what aspects did the filmmaker include to make the scene look and feel like don, cosmo, and kathy are riding in a car on a street? think about elements such as scenery, sound, props, lighting, and so on. a "talkie" picture is shown starting around time code 21: 15. how does the audience in the film react to the "talkie"? what influence do audiences have on film and theatre performances? how do film and theatre actors influence audiences? in the musical scene with cosmo (starting at time code 27: 00), how does the actor use props? what is the result? do you think the use of props effectively fulfilled the artistic vision for this musical number? why or why not?

Develop the program incrementally: a) start by reading and displaying each line of the input file to make sure you are reading the data set correctly. b) use the split string method to extract information from each line into a list. print the list to prove that this step is working correctly. d) convert the exam scores to type int and calculate the student’s average. display those items to prove this step is working correctly. e) create a tuple containing the six items for each student (name, exam scores, exam mean). display the tuples to prove this step is working correctly. (optionally, you may want to have the exam scores in a list so your tuple is (name, scores_list, f) append each tuple to a list. display the list to prove this step is working correctly. g) use the sort list method to re-order the tuples in the list. display the list to prove this step is working correctly. h) use a for statement to display the contents of the list as a table (with appropriate formatting). i) use a for statement to calculate the average of all scores on exam #1, then display the results. note that you could have calculated this average within the first loop, but we are explicitly requiring you to do this calculation by looping though your list of tuples. j) add the logic to calculate the average of all scores on exam #2, then display the results.