Yelp Software Engineering interview questions

Phone screening with recruiter: - 3 adjectives coworkers would use to describe you? - Why would you want to work at Yelp? - Port number used by HTTP? - Protocol underneath HTTP? - Runtime efficiency of searching an element in an array using a binary search algorithm? - Complexity of adding an element to the head of a linked list? - Maximum value of 32 bits unsigned int? - Number of digits needed to code an octet? - What if we're in base 8? - Number of bytes to code 64 bits? - What does SSL stands for and what does it do? - What is the Linux kill signal? - Command to highlight the occurrence of a method in a file? - Would you apply a binary search on a linked list or a sorted array? - Is an inner join an intersection, a union or something else? Phone interview with engineer: - Started by presentation of himself, his team, and other teams - Why computer science? - Talk about an interesting project you implemented. - How would you improve it? - What did you find most interesting in that project? - If a request takes too long, what could be the reason? - Describe different steps when a form is posted - Coding problem to do on a shared pad: # given a list of words, write a function which # takes in the list, and groups the words together # according to which ones are anagrams of eachother # e.g. # input = ["art", "rat", "bats", "banana", "stab", "tar"] # output = [["art", "rat", "tar], ["bats", "stab"], ["banana"]] I wasted too much time trying to come up with an iterative solution when the problem is "easily" solvable with a recursive algorithm.