Write a regular expression to search .dat file (s) having starting character "p" and ending with "zw". Justify RE with example (s).
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- Javascript Use a for/of loop to iterate over the array of students. For each student, use a template literal to print out their name, age, and major in a formatted string. (e.g. John is 18 years old and is studying Computer Science.) Within the template literal, use object dot notation to access the name, age, and major properties of the student object. Use a console.log() to print out the formatted string for each student. Test the code by running it and verifying that it prints out the details of each student in a formatted string.============================================================================== const students = [ { name: "John", age: 18, major: "Computer Science" }, { name: "Newton", age: 19, major: "Mathematics" }, { name: "Barry", age: 20, major: "Physics" }, ]; // Iterate through the array of objects students using for/of // Print a message to the console that includes the student's name, age, and major // Example: John is 18 years old and…Recursion and loops. Provide both recurrent and loop based implementation of the function count( e, L ) that returns the number of es in L, where L is a list. Also consider cases when L is an empty list. Create test cases and run driver, show how function runs in spyder (py file) or ipynb file. Submit code as a py or html or pdf files with screenshots of the runs.Complete the function getLetterFrequency() to return a list containing the number of times each letter of the alphabet occurs in the string passed to it. The Oth index corresponds to the letter "a" or "A", the 1st corresponds to the letter "b" or "B", ..., the 25th corresponds to "z" or "Z". You should ignore any non-alphabet characters that occur in the string. But make sure that both lowercase and uppercase letters contribute to the same count. You must use the ord() function to convert letters into indexed based values. Note that you can offset a number by ord("a") or ord("A") to get the index that you need. You should use at least some of the (or all of) following string methods: • isalpha() lower() • upper() • isupper() • islower() and the following string functions: ord() len()
- Computer Science Download the template program palindrome.c and the input data file data11.txt. Fill out the function palindrome() to determine if the passed string is a palindrome (a string that reads the same forward and backward). Return 1 from the function if it was passed a palindrome and 0 otherwise. Fill out the function newPalindrome() to allocate an instance of the given Palindrome structure and return it. Fill out the delPalindrome() function to free an instance of the Palindrome structure. Fill out the main program to read the data11.txt file from stdin. It has one word per line. Test each input to determine if it is a palindrome. If it is, save it in a new Palindrome instance, and chain it in a list of palindromes. At the end display a palindrome count, a line count, and the list of palindromes. The two output lines should look like (with the missing counts and palindromes filled in): There are __ palindromes in the ____ line input file anna, ... , aga Don't forget to…Allow student to insert one arbitrary string. Save the letters of the string into a list. Design and perform the following tasks and display your results: • Summarizing letters in a string. Write a function that receives a string and returns a list of tuples containing the unique letters and their frequencies in the string. Test your function and display each letter with its frequency. Your function should ignore case sensitivity (that is, 'a' and 'A' are the same) and ignore spaces and punctuation. When done, write a statement that says whether the string has all the letters of the alphabet. • Present descriptive statistics and graphs about the string data. • Sorting letters in different order and removing duplicates • Write a code that produces anagrams of a given string. An anagram of a string is another string formed by rearranging the letters in the first. program must accept inputs from a user, performs an operation using a userdefined function which will accept parameters and…You are tasked to implement an abstract data type class which takes in a given input file called input.txt, and processes, identifies and sorts all unique word instances found in the file. Sample Input Hi hello hi good bye goodbye Bye bye good say Sample Output Bye Hi bye hello hi say The input.txt file is found along with the zip folder where this instructions file also came along with. Note: you are not allowed to use pythonic lists, and its methods and functions, and string methods. However the use of the file handling methods (read readlines and readline) are allowed for this project.
- submit a screen capture searching using regular expressions all file in /etc that start with ‘rc’ followed by numbers 1-6. To do this use ‘ls’ and ‘grep’.implement the Viterbi algorithm in Python. Your task is to write codefor the following prototype:def Viterbi(A,B,Pi,O) Returning Viterbi score and best path2. Calculate the Viterbi score and the Best path of the first two vectorsdescribed in part 1 of this assignment by hand. Show your work.3. Create an observation vector of at least 7 elements.4. Use the observation vectors and results calculated in 2. and 3. above totest your implementation of the Viterbi algorithmThe task is to implement part of a linter program using python. Specifically, you must be able to scan for grouping symbols ( "()", "[]", "{}” ) and ensure that there are no hanging open symbols or stray closing symbols in the source file. The implementation must involve recursion in terms of scanning for the scope. If a different closing symbol is encountered or the end of file is reached, the error message "Line : missing closing symbol for "" should be displayed. For stray closing tags, the message "Line : stray closing symbol for "". Note: Do not use "stack" in your code.
- Remains code. Implement regular expression matching with support for '.' and '*'. '.' Matches any single character.'*' Matches zero or more of the preceding element. The matching should cover the entire input string (not partial). The function prototype should be:bool is_match(const char *s, const char *p) Some examples:is_match("aa","a") → falseis_match("aa","aa") → trueis_match("aaa","aa") → falseis_match("aa", "a*") → trueis_match("aa", ".*") → trueis_match("ab", ".*") → trueis_match("aab", "c*a*b") → true""" def is_match(str_a, str_b): """Finds if `str_a` matches `str_b` Keyword arguments: str_a -- string str_b -- string """ len_a, len_b = len(str_a) + 1, len(str_b) + 1 matches = [[False] * len_b for _ in range(len_a)] # Match empty string with empty pattern matches[0][0] = True # Match empty string with .* for i, element in enumerate(str_b[1:], 2): matches[0][i] = matches[0][i - 2] and element == '*' for i, char_a in…In this challenge, the task is to debug the existing code to successfully execute all provided test files. Consider that vowels in the alphabet are a, e, i, o, u and y. Function score_words takes a list of lowercase words as an argument and returns a score as follows: The score of a single word is if the word contains an even number of vowels. Otherwise, the score of this word is . The score for the whole list of words is the sum of scores of all words in the list. Debug the given function score_words such that it returns a correct score. Your function will be tested on several cases by the locked template code. Input Format The input is read by the provided locked code template. In the first line, there is a single integer denoting the number of words. In the second line, there are space-separated lowercase words. Constraints Each word has at most letters and all letters are English lowercase letters Output Format The output is produced by the provided…Factorize the binned variables for ‘UnsecLines', 'Age', 'MonthlyIncome', and 'N_OpenCredit'. Make sure the codes are properly sorted such that smaller value must have smaller code. Use lambda function within the apply() function. Using a for loop print frequency distribution for each of the binned variables from above. Make sure the bins in the frequency distribution are properly sorted.