An integer   is a  divisor  of an integer   if the remainder of  . Given an integer, for each digit that makes up the integer d...

Karl has an array of integers. He wants to reduce the array until all remaining elements are equal. Determine the minimum number of...

You have a string of lowercase English alphabetic letters. You can perform two types of operations on the string: Append  a low...

ou are given a number of sticks of varying lengths. You will iteratively cut the sticks into smaller sticks, discarding the shortest pi...

Emma is playing a new mobile game that starts with consecutively numbered clouds. Some of the clouds are thunderheads and others ...