SQL query to find department wise count
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Write a.SQL.query for selecting the second top most salary of an employee from employee table.
Given an array of unique non-negative integers, {A1,…,An}, and a positive integer, X, write a function that finds all pairs of numbers in the array that sum to X”. You are given an integer array nums sorted in ascending order (with distinct values), and an integer target. Suppose that nums is rotated at some pivot unknown to you beforehand (i.e., [0,1,2,4,5,6,7] might become [4,5,6,7,0,1,2]).” Take a singly-linked list, and reorder in such a way that the first element points to the last element, second element points to second-to-last element, and so on.
Getting the min from a stack in O(1) time
How to write an evaluator for a string like "(1+3 * ( 5 / 4)) and get a numeric result.
How would you sort an array if you had infinite RAM? Infinite memory?
Give an example of real world scenario where you see inheritance?
Check if a string which represents a math exercise is balanced in terms of parentheses Remove spaces from a string
Technical questions as per your past experience
Given a database, where we know some portion of data (e.g. say 20%) is accessed more than the other portion of the database by the client. We have a frontend that client requests data from. Design a data structure that will increase the efficiency of access of objects. And we know that we can only hold on to n elements in memory.
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