10+ Interview Questions and Answers

You are given an array “ARR” of size N. Your task is to find out the sum of maximum and minimum elements in the array.

Follow Up:

Can you do the above task in a minimum number of comparisons? ...read more

Given an array parent which represents a binary tree such that parent-child relationship is defined by ('PARENT'[i], 'i') which means that parent of i is 'PARENT'[i]. The value of t...read more

Different versions of polymorphism? How to solve the problem of multiple inheritance?

What are Template classes? Write a program for operator = for template class such that it behaves differently for int and char *

What is foreign key? Can a foreign key be Null ?

Design a parking lot? Design should include :
1. Logic Flow Diagram
2. E-R diagram (very important)
3. DB tables with relations between them, preferably normalized
4. Commands for transacti...read more

What is a primary key? What is a unique key?

Can unique key be a primary key?

Is Normalized form is better or storing in a single table/ 2 tables is better?

Difference between deep and shallow copy?

What is C++?