The Weekly Challenge

You are given two array of strings. Write a script to return the number of strings that appear exactly once in each of the two given arrays. String comparison is case sensitive.

You are given a number and a digit (k). Write a script to find the K-Beauty of the given number. The K-Beauty of an integer number is defined as the number of substrings of given number when it is read as a string has length of ‘k’ and is a divisor of given number.