HackerRank

In Python, a string of text can be aligned left, right and center..ljust(width)This method returns a left aligned string of length width.>>> width = 20>>> print 'HackerRank'.ljust(width,'-')HackerRank---------- .center(width)This method returns a centered string of…

Python has built-in string validation methods for basic data. It can check if a string is composed of alphabetical characters, alphanumeric characters, digits, etc.str.isalnum()This method checks if all the characters…

In this challenge, the user enters a string and a substring. You have to print the number of times that the substring occurs in the given string. String traversal will…

 In Python, a string can be split on a delimiter. Example:>>> a = "this is a string">>> a = a.split(" ") # a is converted to a list of strings. >>>…

 You are given a string and your task is to swap cases. In other words, convert all lowercase letters to uppercase letters and vice versa.For Example:Www.HackerRank.com → wWW.hACKERrANK.COMPythonist 2 → pYTHONIST…

 TaskGiven an integer, , and  space-separated integers as input, create a tuple, , of those  integers. Then compute and print the result of .Note: hash() is one of the functions in the __builtins__ module, so it need not be…

Consider a list (list = []). You can perform the following commands:insert i e: Insert integer  at position .print: Print the list.remove e: Delete the first occurrence of integer .append e: Insert integer  at…

The provided code stub will read in a dictionary containing key/value pairs of name:[marks] for a list of students. Print the average of the marks array for the student name…