Write a python program to count the number of vowels in a string?
Write a function that takes an unsorted integer array, and returns a three element subset whose sum is zero.
Write a python program to count the number of digits in a number?
Write a python program to check if a string is a palindrome or not?
Write a function, tokenize_string(input_string, delimiter_list) that returns a list of strings that are separated by the delimiters. For example: tokenize_string("How now, Mrs. Brown Cow") returns ['How', 'now', 'Mrs', 'Brown', 'Cow']
How do you set a global variable inside a function?
Write a python program to swap the first and last value of a list?
Write a python program to find the second largest number in a list?
Write a python program to count the number of vowels in a string?
Given a N by N matrix of both negative and positive integers. Write an efficient algorithm to find the sub-matrix with the largest sum of all the contained elements.
Write a python program to check if a number is a palindrome or not?
Write a python program to check common letters in two input strings?
Write a program to find sum of the digits of a number in python?