GeeksforGeeks

A computer science portal for geeks

     GeeksQuiz

Hash Table supports following operations in Θ(1) time.

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1st round online test- 1. Psychometric Test 2. General Aptitude 3. Analytical Aptitude 4. Verbal Skills 5. Computer Skills

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Given an unsorted array with repetitions, the task is to group multiple occurrence of individual elements. The grouping should happen in a way that the order of first occurrences of all elements is maintained.

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Given an array that is sorted and then rotated around an unknown point. Find if array has a pair with given sum ‘x’. It may be assumed that all elements in array are distinct.

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Given a string ‘str’ of digits and an integer ‘n’, build the lowest possible number by removing ‘n’ digits from the string and not changing the order of input digits.

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Write a function subtract(x, y) that returns x-y where x and y are integers. The function should not use any of the arithmetic operators (+, ++, –, -, .. etc).

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I had recently given Interview at Lenskart.com for Application Developer First Round Telephonic with HR on some basic stuff.

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Given a universe U of n elements, a collection of subsets of U say S = {S1, S2…,Sm} where every subset Si has an associated cost. Find a minimum cost subcollection of S that covers all elements of U.

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Given n cities and distances between every pair of cities, select k cities to place warehouses (or ATMs) such that the maximum distance of a city to a warehouse (or ATM) is minimized.

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Given a sequence of moves for a robot, check if the sequence is circular or not. A sequence of moves is circular if first and last positions of robot are same. A move can be on of the following. G – Go one unit L – Turn left R – Turn right

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Following is my experience. I hope it helps people out there, as I got help from other posts here before my interview.

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Written MCQ There were 20 multiple choice questions to be done in 30 minutes time and most of the technical questions were from geeksquiz , one blood and relation question and one simple probability question.

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I gave this interview for Senior Software Developer Role. Round 1: Lots of puzzles and algo’s. The interviewer didn’t let me write code for anything, the moment I say efficient algorithm he moved next question.

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Attended coding interview for myntra. Question was based on the movement of Robot.

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