Microsoft Interview Question
Given 2 integer, return their multiplication without using the multiplication operator
Interview Answers
Anonymous
Oct 31, 2017
Recursion. Manipulate only one of the two integers, let’s say y. If y is 0 then return 0. If y is greater than 0, call the same function with y-1 and return the sum of its result and x. Do not forget the case where y is negative (call the function with -y, and return the opposite)