Since I wrote the code to these snippets I thought I may as well add them here in case I ever need them again or want to review them. As the other interview ones they are the answers to a question I was asked, slightly modified to protect the innocent. These ones are written in Python.
Q. Write a function to reverse each word in a string.
def reverse_each_word(words): ''' Reverse each word in a string ''' return " ".join([x[::-1] for x in words.split(' ')])
The only thing of note in here is the x[::-1] which is extended slice syntax which reverses a string. You could also to reversed(x) although I believe at the time of writing it is MUCH slower.
Q. Given two arrays find which elements are not in the second.
def find_not_in_second(first, second): ''' Find which numbers are not in the second array ''' return [x for x in first if x not in second]
I am especially proud of the second snippet as it is very easy to read and rather Pythonic. It takes in two lists such as [1,2,3] and [2,3,6] and returns a new list with the missing elements.