One of the question: Compare two strings from two arrays of n strings and print 'yes' if they are almost similar and 'no ' if they are not. for example if 1 - 'aaabbb' 2- 'aabb' 1- {a:3 b:3} 2-{a:2 b:2} then they are almost similar if for, a: 3-2=1 and for b= 3-2 =1 such difference is less than 3, so for this example, the results is 'Yes' .