1. Write regular expression for the following languages, alphabet {0,1} a. The set of strings that do not end with 11 b. The set of strings that do not contain substring 01 c. The set of strings having 0 at every 3rd position. d. Describe the language given by the regular expression 0*10*10*1(1|0)* e. Set of all strings that are at least of length 4 and contains an even number of l's. 2. Draw the DFA for the following languages

Write a function filter_codes(list_codes) that receives a list of codes and returns another list containing those codes that:    Only have numeric characters; and Are at least 2 characters long; and At most 6 characters long Hint: remember that Python has a built-in function for determining if a string only contains numeric characters. solve using python