a telephone keypad has letters associated with each number (e.g. 2 = abc, 3 = def); given a passphrase of "fb1" (e.g. one that you might use to log into a bank account), come up with an algorithm that would assemble an array that contains all the different possible letter combinations that, when typed into a telephone dial pad, would be equivalent to the original passphrase.
You are given a bunch of dominoes. Write a function that determines if any two of those dominoes add up to [6, 6] (e.g. [1,4] + [5, 2]).
Given an array of integers, find the maximum number that can be reached by summing the best possible consecutive subsequence of the array.
NSRange intersections
They had asked me what's wrong with this particular code and how/which part would I improve it?
2D matrix BFS. Can't believe the interviewer does not know how to use queue to do BFS.
Present a project that you've worked on
Given 2 dates, return a result set that outputs a number for each week between the two. (They will ask the numbered week to be the sequential week and also the calendar week. Prepare for given start date to be start mid-week.)
Tell me ten features of C++ (that are not in C) that have nothing to do with object oriented programming.
Given a list of versions (in string format). The versions can have invalid characters (requires cleaning). Print the list in sorted order of increasing versions. Input: ["1.2.34", "$5.j8", "3.4#", "3.45"] output: 1.2, 3.4, 3.45
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