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.

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.

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter7: Characters, Strings, And The Stringbuilder

Section: Chapter Questions

Problem 12RQ

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def reverse_sentence(s: str) -> str:"""This means that in the string 'ATest string!', there are in fact only twowords: 'A' and 'Test string!'. Again, keep in mind that words start with acapital letter and continue until the next capital letter or the end of thestring, which is why we consider 'Test string!' as one word.This function will reverse each word found in the string, and return a newstring with the reversed words, as illustrated in the doctest below.>>> reverse_sentence('ATest string!')'A!gnirts tseT'""" please don't use any list function or import just basic if and loop function and also please do this code in python
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def is_palindrome_string(string: str) -> bool:"""Given a string <string>, return whether this string is a palindrome string.for ANY CONTINUOUS SEGMENT OF ALPHABETICAL CHARACTERS. That means that "abc;def", has two words: "abc"and "def". The separating character does not have to be whitespace, andthere could be more than one separating character between two words.A simple example: given the string "test string test", there are threewords, "test", "string", and "test". The first letters of each word cometogether to form the string "tst". And since "tst" is a palindrome, thisfunction should return True for the input "test string test".Precondition: <string> will contain at least one word.""" " please code this in python and also add this code def is_palindrome(string: str) -> bool:string = string.replace(" ", "")return string.lower() == string[::-1].lower() and use is_palindrome in the main function "
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