Given the daily stock prices of a share during last 30 days, write a program to find out best buying and selling dates for maximum gain. The program should run with O(n) complexity.
Informatic Interview Questions
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given an array of integers(positive or negative), and two integers x, y. write a function that can find a subarray whose sum equals to x and product equals to y
Write a function that allows to convert a string to the corresponding number (i.e. implement the atoi() C function)
Probably the most difficult question they asked me was, he put a binary tree on the whiteboard and I had to write a function that would find if the tree was symmetrical or not. Anyone who's familiar with data structures and recursion should be fine with this, just don't freak out when they propose the question.
implement a stack with a method which can return the minimal value in the stack without remove this value.
Write an algorithm to return the intersect of two arrays.
You need to design a system to provide answers to factorials for between 1 and 100. You can cache 10 numbers. How would you arrange/manage that cache, and what is the worst case for lookup on a cache miss?
2 medium questions and 1 hard
Given an ordered large array of integers, find all pairs of numbers that add up to a particular given sum.
round 1: Why coming to Berlin from India? Why Zalando? What do you know about Zalando? Salary expectations? Do you have any questions? round 2: Tell me about about a situation when there has been a conflict between you and your colleague, how you resolved it. Tell me about about a situation when there has been a conflict between two of your colleagues, they approached how you resolved it. How do you convince people to choose a technology? Tell me about about a situation when you went against odds / didn't listen to your manager. How you convince people to help you with technical issues. Tell me about about a situation which proves you are motivated to take up challenges and learn new technologies. How you choose a a particular technology/solution from among multiple technologies/solutions.
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