Write a regular expression for each question that describing the set of strings over the alphabet Σ = {0, 1} that: a. Does not contain the string 110. b. Start and end with the same letter.
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Write a regular expression for each question that describing the set of strings over the alphabet Σ = {0, 1} that:
a. Does not contain the string 110.
b. Start and end with the same letter.
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- Complete the function ratio_similarity, which computes the ratio of "similarity" between two non-empty strings. The ratio is computed as follows: 2 (the number of matches of characters) / (total number of characters in both strings) The matches are determined in pairwise fashion. For example, consider the strings abcdef and abdce. The three characters at indexes 0, 1 and 4 match. Therefore, the similarity ratio is 2 * 3/(6 + 5) = 0.5454 .... Examples: Function Call string_similarity('abcdef', 'abdce') string_similarity('dragon', 'flagon') string_similarity('stony', 'stony') string_similarity('Stony Brook University', 'WolfieNet Secure') string_similarity('yabba dabba doo', 'bippity boppity boo') string_similarity('Wolfie the Seawolf', "What's...a Seawolf?") [ ] Return Value 3 4 5 # Test cases 6 print (string_similarity('abcdef', 'abdce')) 7 print (string_similarity('dragon' 1 'flagon')) 'stony')) 0.5454545454545454 0.6666666666666666 1.0 0.0 0.058823529411764705 0.4864864864864865 1…Please draw with the computer Draw a standard trie for the following set of strings: { banana, banner, ban, banned, banger, bank}A3 = {w ∈ {1,0}* | every odd position in w is an 1}. Provide regular expression. explain in detail include possible strings and NFA
- The countSubstring function will take two strings as parameters and will return an integer that is the count of how many times the substring (the second parameter) appears in the first string without overlapping with itself. This method will be case insensitive. For example: countSubstring(“catwoman loves cats”, “cat”) would return 2 countSubstring(“aaa nice”, “aa”) would return 1 because “aa” only appears once without overlapping itself. public static int countSubstring(String s, String x) { if (s.length() == 0 || x.length() == 0) return 1; if (s.length() == 1 || x.length() == 1){ if (s.substring(0,1).equals(x.substring(0,1))){ s.replaceFirst((x), " "); return 1 + countSubstring(s.substring(1), x); } else { return 0 + countSubstring(s.substring(1), x); } } return countSubstring(s.substring(0,1), x) + countSubstring(s.substring(1), x); } public class Main { public static void main(String[] args) { System.out.println(Recursion.countSubstring("catwoman loves cats","cat"));…public static String pancakeScramble(String text) This nifty little problem is taken from the excellent Wolfram Challenges problem site where you can also see examples of what the result should be for various arguments. Given a text string, construct a new string by reversing its first two characters, then reversing the first three characters of that, and so on, until the last round where you reverse your entire current stringHow can I find the first repeating character from the user entered string in Java programming language. Please don't use Map data structures.
- A. Which statement about regular expressions is correct? a. To find all occurrences of a matching substring for a regular expression, you must add thegflag. b. By default, pattern matching using regular expressions locates all matches in the searched string. c. To find all occurrences of a matching substring for a regular expression, you must add theiflag. d. The default behavior of a regular expression is modified by adding flags to the beginning of the expression. B. After the following JavaScript statements execute, the value ofcrayonsis["pink", "blue", "green"]. let crayons = ["pink", "purple"];crayons.shift();crayons.unshift("blue", "green"); Select one: True FalseImplement the following function which accepts a string as parameter and reverses it, without using any function from the string library. void strReverse(char *str)Correct answer will be upvoted else Multiple Downvoted. Computer science. You are given a string s, consisting of brackets of two types: '(', ')', '[' and ']'. A string is called a regular bracket sequence (RBS) if it's of one of the following type empty strin '(' + RBS + ')' '[' + RBS + ']' RBS + RBS where plus is a concatenation of two strings In one move you can choose a non-empty subsequence of the string s (not necessarily consecutive) that is an RBS, remove it from the string and concatenate the remaining parts without changing the order What is the maximum number of moves you can perfor Input The first line contains a single integer t (1≤t≤1000) — the number of testcases Each of the next t lines contains a non-empty string, consisting only of characters '(', ')', '[' and ']'. The total length of the strings over all testcases doesn't exceed 2⋅10 Output For each testcase print a single integer — the maximum number of moves you can perform on a given string…
- Assume the alphabet ∑ is {a, b, c}. In the following questions, give a regular expression that represents the described set. a) The set of all strings over {a, b, c} containg at least one b or at least one c. b) The set of all strings over {a, b, c} that begins with bb and ends with cc. c) The set of all strings over {a, b, c} that contains the substing ab or bc. d) The set of all strings over {a, b, c} either starts and ends with a or starts and ends with c. e) The set of all strings over {a, b, c} starts with at least one a and ends with at least one b immediately followed by zero or more number of c.Target The aim of this work is to use control structures and loops. Read carefully the problem and understand what needs to be done. Read your description is given and when you understand how it works, then start designing its solution and its implementation on the computer applying the syntax and semantics of the language Java programming. Write a LongestDupSubstring.java program that accepts a string as input and compute and print the longest sub-string displayed in two times without overlap (see 5th example for overlap). If there are more from one of such sub-strings, the program displays the first one it finds as well the number of characters in the substring. If there is no substring that appears 2 times, then the program will not print anything. Execution examples (the user's input is red and the longer in length 2 substrings) 1 Example Give a string: again and again Longest substring: again Longest substring size: 5 2 Example Give a string: seven saints and seven dinners Longest…Computer Science This is a codingbat problem. Please answer in Java and do not change the starter code. You have been asked to write the game of tic tac toe. In the first version of the game, we will only be comparing horizontally for a win. A win is determine by all of the elements in a row either being an X or an O. You need to return a String with the winner or TIE if there is no winner. ticTacToe(["X", "O", "O"], ["X", "O", "O"], ["X", "X", "X"]) → "X"ticTacToe(["X", "O", "X"], ["X", "X", "O"], ["O", "O", "O"]) → "O"ticTacToe(["X", "O", "X"], ["X", "X", "O"], ["O", "X", "O"]) → "TIE" public String ticTacToe(String[] top, String[] middle, String[] bottom) { }