Write a python program to find the second largest number in a list?

952

How do you set a global variable inside a function?

861

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]

2290

Write a python program to check if a number is a strong number?

906

Write a function to efficiently convert a floating point number to a rational number. For example, given 0.125 return "1/8"

1622

Write a python program to check if a string is a palindrome or not?

910

Write a python program to check if a number is a prime number?

878

Can you write a program to find the average of numbers in a list in python?

877

Discuss an algorithm to traverse a tree, depth first.

1750

Write a python program to count the number of vowels in a string?

924

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].

1786

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

1845

Write a function that takes an unsorted integer array, and returns a three element subset whose sum is zero.

1709

Write a python program to check if a number is a palindrome or not?

860

Write a program to find sum of the digits of a number in python?

911