what is singleton class
Engineer Developer Interview Questions
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you are driving a car with uniform speed after travelling certain distance you see a sign board with two digit no after1 hour you see a sign board with same two digits in reverse order after another 1 hour you see a sign board with same two digits in but zero in between find relative speed ??
Given two sets of trees and ignoring the content of the nodes, describe rules that would define whether or not these two trees are equivalent.
Given 2 strings find the common words along with the time and space complexity. How would you optimize the algorithm
Technical Question: Given the following list of integers, how would you sort it the most efficiently and weed out duplicates at the same time?
How will you make this code readable (given a piece of code)
Given a constant input stream of integers design a way to, at any point, return the current median of that stream.
"Given a log file spanning multiple days, and given a page transition A -> B -> C, find all the unique users who made this page transition in the logs"
Code to check if a Binary tree is symmetrical.
given a dictionary of words sorted according to a certain order, write a function to out put this order. e.g. input {abc, fkq, bct} output:{a, f, b, k, c, q, t}
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