1st Round : Machine Coding Round It was machine coding round having two coding questions. 1) Based on tree . (Solved using Brute force , didn’t pass all test case.) 2) Array and HashMap related problem. Solved in O(n) passed all test case. 2nd Round : Tech Interview 1) Reverse linked list and some basic… Read More »
I want to share my interview experience with paytm with all of you. Round-1 [1.5 hr] 1. Brief introduction 2. Discussion about project 3. why are you using Fluentd(EFK) in place of Logstash(ELK) 4. Question on Elastic Search [Based on my project] 5. Given a binary tree, write a function to print its top and… Read More »
Round 1: Brief intro Discussion about Projects and work ex. Why are you using aerospike? Given a matrix sorted only row-wise, search a number in it. (Complexity O(log(m+n))). Round 2: Brief intro Discussion about project Why are you using aerospike? Design a hashmap. Relationship between equals() and hashcode(). Find a loop in linked list Given… Read More »
It was a walk-in for experienced candidates actually. Round 1: Machine Coding Round (60 min) Q1. Infix to Postfix conversion e.g. A+(B-C)*D becomes ABC-D*+ Q2. Given an array of integers find the minimum distance between a pair of numbers Q3. Find the frequency of each character in a given string Round 2: First F2F Technical… Read More »
The test was held at 7 in the morning and then the shortlist was announced within an hour. The test included three questions: a) Given an array find a subsequence with maximum sum but all the elements must be non-adjacent b) Given an array consisting of whole numbers, push all the zeroes at the end… Read More »
Paytm Hiring Drive for Backend Engineer. Selection process was completed on same day . Round 1 ( Written ): It was a technical written round with 20 questions out of which 2 were coding questions. Rest 18 were objective type mainly C ,SQL ,Algo. a ) Write code to create mirror image of tree. b… Read More »
I got a chance to participate in walk-in drive at Paytm Head quarters. Went through following process.
Written 1 : Technical and Aptitude. Written 2: Written Coding