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Category Archives: CS – Placements

Given an encoded string str consisting of digits and * which can be filled by any digit 1 – 9, the task is to find… Read More
Given string str of the lowercase alphabet and an integer K, the task is to count all substrings of length K which have exactly K… Read More
Given an integer N, the task is to find the Nth natural number with exactly two bits set. Examples:   Input: N = 4 Output: 9 Explanation: Numbers with exactly… Read More
This article contains a list of most asked questions from Operating Systems, Computer Networks and DBMS in the interviews of the top product based companies… Read More
Given a series of integers from 1 to infinity and a number N.The task is to remove every (i + 1)-th element from the remaining… Read More
1. Consider a binary tree of N vertices such that children of node k are 2*k and 2*k+1. Vertex 1 is the root of the… Read More
1. Online Assessment Test (HackerRank) a. 15 aptitude questions (15 mins) b. 5 input-output programs (15 mins) c. 2 programming questions (45 mins)   2.… Read More
Lateral thinking is the most interesting test module of tcs digital hiring process. Problem: Move 3 matchsticks from the given set of matchsticks arranged as… Read More
Wisdoms for CS/IT/ECE/EE guys of 1st, 2nd or 3rd year. You might wonder what does an amateur has to say for a topic that is… Read More
Deloitte had come to my Campus during the second week of November. They hired both full-timers and interns. I was among the interns. The internship… Read More
Technical Interview is one of the easy phases to go through in a company’s recruitment procedure if you approach this the right way, otherwise it… Read More
1. What is a pure virtual function? Ans. A pure virtual function (or abstract function) in C++ is a virtual function for which we don’t… Read More
A linked list is a linear data structure, in which the elements are not stored at contiguous memory locations. The elements in a linked list… Read More
AWS hiring process has 5 rounds. First Round: First round is online test, which has four sections.section-1 has quantitative aptitude, logical reasoning questions.sections-2 has technical… Read More
  Technical attitude test(Round 1) This round consisted of 30 aptitude questions based on general aptitude and computer science fundamental subjects like operating system, dbms,… Read More

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