Create a function that will test if a string is a valid PIN or not via a regular expression. A valid PIN has: • Exactly 4 or 6 characters. • Only numeric characters (0-9). • No whitespace. Examples validate("121317") validate("1234") → true validate("45135") → false validate("89abc1") validate("900876") → true validate(" 4983") → false → true → false
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- The following functions are all intended to check whether a string representing a dna sequence contains any characters that are not 'a','c','g','t', 'A', 'C', 'G', or 'T'. At least some of these functions are wrong. Which ones are correct? A) def valid_dna1(dna): for c in dna: if c in 'acgtACGT': return True else: return False B) def valid_dna3(dna): for c in dna: flag = c in 'acgtACGT' return flag C) def valid_dna4(dna): for c in dna: if not c in 'acgtACGT': return False return True -------------------------------------------------------------------------------------------------------------------------------------------------------- valid_dna1 only valid_dna4 only None of them. valid_dna1, and valid_dna4 onlyWrite a function that returns true if the two provided license plates strings are visually similar. For this test, we will only need to consider the 26 English uppercase characters A to Z and the digits 0 to 9. def similar_license_plates(plate1: str, plate2: str) -> bool: return FalseWrite a program called p3.py. Write a function called validate() that takes a string as input, validates that it is a single letter, and returns the letter in lowercase.Example:validate(“A”) returns avalidate(“abc”) returns invalid
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- Write a function to determine whether a string is a permutation of a palindrome given a string. A word or phrase that reads the same both forward and backward is known as a palindrome. Letters are rearranged in a permutation. The palindrome need not contain only words from dictionaries. EXAMPLEInput: Tact CoaOutput: True (permutations: "taco cat'; "atco eta·; etc.)Question 12 kana .Which of the following statements is false? The re module's findall function finds every matching substring in a string and returns a list of the matching substrings. The following code extracts all phone numbers of the form ###-###-#### from a string:contact = 'Wally White, Home: 555-555-1234, Work: 555-555-4321're.findall(r'\d{3}-\d{3}-\d{4}', contact) The re module's finditer function works like findall, but returns a greedy iterable of match objects. For large numbers of matches, using finditer can save memory because it returns one match at a time, whereas findall returns all the matches at once. Full explain this question and text typing work only We should answer our question within 2 hours takes more time then we will reduce Rating Dont ignore this lineThis function should reverse the words in a string. A word can be considered to be any characters, including punctuation, separated by spaces (only spaces, not tabs, \n etc.). So, for example, if s is “The Giants won the Pennant!” the function should change s to “Pennant! the won Giants The” void reverseWords(char *s)
- C++ is my answer correct ? Write a function to convert a given string : Answer: #include <iostream> #include <string> using namespace std; void toUpper(string &str) { for (int i = 0; i < str.length(); i++) { str[i] = toupper(str[i]); } } void toLower(string &str) { for (int i = 0; i < str.length(); i++) { str[i] = tolower(str[i]); } } int main() { string str = "khaled"; toUpper(str); cout << str << endl; str = "MOHAMMED"; toLower(str); cout << str << endl; return 0; } Write a function to calculate the sum of the even number from 1 - 100. Answer: #include <iostream> using namespace std; int sumEven() { int sum = 0; for (int i = 1; i <= 100; i++) { if (i % 2 == 0) { sum += i; } } return sum; } int main() { cout << sumEven() << endl; return 0; }Create a function that accepts a string (of a person's first and last name) and returns a string with the first and last name swapped. Examples NameShuffle("Donald Trump") - "Trump Donald" NameShuffle ("Rosie O'Donnell") - "O'Donnell Rosie" NameShuffle ("Seymour Butts") - "Butts Seymour" • There will be exactly one space between the first and last name. In c#The international standard letter/number mapping for telephones is: Write a function that returns a number, given an uppercase letter, as follows:def getNumber(uppercaseLetter):Write a test program that prompts the user to enter a phone number as a string. The input number may contain letters. The program translates a letter (uppercase or lowercase) to a digit and leaves all other characters intact. Here is a sample run of the program: Enter a string: 1-800 flowers1-800-3569377