Write a python program to check common letters in two input strings?
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Write a function that takes an array of integers and returns that array rotated by N positions. For example, if N=2, given the input array [1, 2, 3, 4, 5, 6] the function should return [5, 6, 1, 2, 3, 4]
What is the output, suppose list1 is [1, 3, 2], what is list1 * 2 ?
Write a python program to swap the first and last value of a list?
Write a function that takes an array of integers and efficiently calculates and returns the Least Common Multiply in python.
Write a python program to count the number of vowels in a string?
Write a python program to check if a number is a palindrome or not?
Write a python program to find the second largest number in a list?
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 an armstrong number?
Write a python program to check if a string is a palindrome or not?
Discuss an algorithm to traverse a tree, depth first.
Write a simple "Hello User" python code snippet.