The document contains summaries of two coding interview questions: 1) Given a sorted array of integers, write a function to return a sorted array containing the squares of the original integers. Two solutions are provided - one in O(nlogn) time and one in O(n) time. 2) Given two integer arrays a and b and a target value v, determine if there is a pair where one number is from a and one is from b that sum to v. Return True if such a pair exists, otherwise False. Two solutions are provided - one in O(n^2) time and one in O(n) time.