Example 3.15 Given a list of symbols a1, a2, …, am, a string of these symbols is: B1. the empty string, denoted by λ, or B2. any symbol ai, or   R. xy, the concatenation of x and y, where x and y are strings. Since λ represents the empty string, we do not write λ after it has been concatenated with another string. For example, cubsλ = cubs. It shouldn’t be hard to convince yourself that this definition describes any possible “word” in the given symbols. Refer to Example 3.15. Suppose that the symbols can be compared, so for any i and j with i ≠ j, either ai < aj or aj < ai. Modify the definition so that it defines the set of all strings whose symbols are in increasing order.

Construct dfas that accept the followings: a. Set of all strings on {0,1} that do not contain two consecutive 0s b. Set of all stings on {0,1} that end with two 0s

Given a string, check whether it is a panagram or not.A panagram is a sentence that uses every letter at least once.The most famous example is: "he quick brown fox jumps over the lazy dog.Note:A panagram in one language isn't necessarily a panagram in another. Thismodule assumes the english language. Hence, the Finnish panagram'Törkylempijävongahdus' won't pass for a panagram despite being considereda perfect panagram in its language. However, the Swedish panagram'Yxmördaren Julia Blomqvist på fäktning i Schweiz' will pass despiteincluding letters not used in the english alphabet. This is because theSwedish alphabet only extends the Latin one.""" from string import ascii_lowercase def panagram(string):    """    Returns whether the input string is an English panagram or not.        Parameters:            string (str): A sentence in the form of a string.        Returns:.

In python, The function slice_end takes a string parameter, word, and a positive integer n; the function returns a slice of length n from the end of word.  However, if word has length less than n, then the None object is returned instead. Hint: Notice that returning the empty string when n is zero might be a special case.  You can use an if-elif-else decision structure and the slicing operator [ : ] to solve this problem.   For example: Test Result word = "pineapple" n = 5 print(slice_end(word, n)) apple word = "too short" n = 20 print(slice_end(word, n)) None word = "llama" n = 0 print(slice_end(word, n))   word = "Saturn" n = 6 print(slice_end(word, n)) Saturn