Write a python program to check if a number is a strong number?
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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]
how are functions defined in python ?
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 function that takes an unsorted integer array, and returns a three element subset whose sum is zero.
Write a python program to swap the first and last value of a list?
Discuss an algorithm to traverse a tree, depth first.
Write a program to find sum of the digits of a number in python?
What is the output, suppose list1 is [1, 3, 2], what is list1 * 2 ?
Write a python program to count the number of digits in a number?
Write a python program to check if a number is a perfect number?
How to print sum of the numbers starting from 1 to 100?
Write a python program to find the second largest number in a list?