def substring with largest sum(string: str) -> str: wwwwin Given a string , return the substring with the largest sum (as calculated by sum_string()) that exists within . If there are multiple substrings with equally large sums, return the first one that occurs. The substring could just be the whole string itself, or it could be empty. To calculate the sum of the substring, please use the function sum_string() which you have implemented above as a helper. For example, given the string "321", there are 7 possible substrings: "3", "2", "1", "32", "21", "321". For each one of them, their sum can be calculated as per the sum string() function which you have already implemented. By using your understanding of loops, implement this function to return the substring with the largest sum by checking all of the substrings of the input string. So, "32" evaluates to 1, "21" also evaluates to 1, "321" evaluates to 2, resulting in "3" being the largest possible substring as it evaluates to 3.

Even though the EXIT clause can be used in any type of loop, it is considered good form to use the EXIT clause only in basic loops. Answers: Yes No

Is it real or not? A variable's scope is limited to the for loop when it is specified in the initialization phrase.

LAB ASSIGNMENTS IMPORTANT: you should complete the PDP thinking process for each program. Turn in items: 1) book_list.py: you can adapt your Chapter 4 book_list.py Lab program. The program summarizes costs of a book list. It uses all of our standard mipo_ex features. In this version of the program you must use pylnputPlus functions to perform all the input validation and for the main() loop decision. Adjust your program to allow book prices to include $ and cents. Restrict individual book prices to $100 maxium. • Clearly document, with comments, your use of the pyip functions. This program summarizes a book liat. Enter the number of books that you need: Please enter a whole number: three Enter a number greater than 0: 3 Enter the name of book #1: The Mueller Report Enter cost of The Mueller Report, to the nearest dollar: Please enter a whole number: 18 Enter the name of book #2: Educated: A Memoir Enter cost of Educated: A Memoir, to the nearest dollar: Please enter a whole number: 24…