Discuss an algorithm to traverse a tree, depth first.
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Write a function that takes as input a binary tree, and prints out each level of the tree on a newline. For example: a / b c / / d e f will output: a b c d e f
Write a python program to check if a number is a strong number?
How do you set a global variable inside a function?
Write a program to find sum of the digits of a number in python?
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?
Write a python program to check if a number is a palindrome or not?
Write a python program to count the number of digits in a number?
Write a python program to check if a number is an armstrong number?
Given a circular list of integers (when you reach the end of the list you come back to the beginning), what is the most efficient algorithm to find the smallest integer in the list? For example: circular_list = [22, 52, 66, 82, 5, 8, 12, 19].
Write a python program to find the second largest number in a list?
how are functions defined in python ?