Paytm Interview Experience | Set 4 (Walk-in Drive) Improve Improve Like Article Like Save Share Report I got a chance to participate in walk-in drive at Paytm Headquarters. Went through the following process. Written test: It contained 20 objective questions having a mix of C, networking and Database questions and 2 subjective questions. Subjective questions: Stock buy sell maximum profit and Find sub string in a string Tech round conducted by SE: Ques 1: Reverse a given linked list Ques 2: Reverse linked list in group of size 3 Ques 3: Minimum distance between two given characters of a string Tech round conducted by tech lead: Ques 1: Tell me about yourself. Technology stack which you used while working. Ques 2: Matrix multiplication (buy c++ book from Sumita Arora class XII level for answer :P) Ques 3: Coin change problem (solved it using DP) Interviewer was impressed with solution of coin change and later he discussed what were the most difficult data structure problems which I had solved. I told some like phone number keypad problem, sudoku solver etc. I was only possible because of all the stuff I prepared regularly from geeksforgeeks which I could not have found anywhere else. Thanks to geeks for geeks. 🙂 All Practice Problems for Paytm ! Related Practice Problems Coin Change Multiply Matrices Minimum distance between two numbers Reverse a Linked List in groups of given size. Reverse a linked list Stock buy and sell Last Updated : 28 May, 2019 Like Article Save Article Previous Accolite Interview Experience | Set 10 (On-Campus) Next Amazon Interview Experience | Set 190 (Delhi Drive) Share your thoughts in the comments Add Your Comment Please Login to comment...