Given an integer N and an array of unsorted integers A find all pairs of numbers within A which add up to N. (This is the only question I can remember and I had trouble thinking of an answer at the time)
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Telephone interview: Find largest integer from an array of integers. The integers in the array are arranged in strictly increasing (no 2 integers are same) or strictly increasing then decreasing; so like a curve and you have to find the peak. Discuss time complexity. Write code.
Test if a Binary tree is BST or not
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?
1. You built an application like google drive. State the test cases 2. You are trying to upload a picture on facebook and it is not loading. List out the possible errors 3. Reverse alternate words in a sentence
Given a string, remove subsequent duplicate characters until we get a unique set of characters. Ex: input ==> apple ; expected output ==> ale Ex: input ==>appapple; expected output ==>le The input will be in char array. char[] removeDupes(Char[] inputString){ }
tell me how you have spent time learning new things to help you in your current or past positions
2 medium questions and 1 hard
From SQL: 1. If there are 2 tables with m and n rows respectively, then what will be the minimum and maximum number of rows in all the joins. 2. Get the 3rd highest employee salary from employee salary table. 3. Given a product table, the new record gets appended in table with the new timestamp for the product ID. Find out the latest row for that particular product with or without analytical functions. 4. Given there are 2 tables of employee details and employee project details, which all employee are not yet assigned a project. For python: 1. Given a product data frame, the new record gets appended in table with the new timestamp for the product ID. Find out the latest data frame for that particular product with pandas.
SQL question: 1 table with player_id, log in date, and 2 other fields and was asked to calculate first day retention rate. First day retention rate is defined as the player who log in the 2nd straight day, after the first ever time they log into game.
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