Paytm Internship Interview Questions, Process, and Tips for Freshers

• Q1. Tell me something about yourself
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• Q1. Why You want to work in HR?
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• Q2. Do you have any prior experience?
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Round duration - 70 Minutes
Round difficulty - Medium

Their were 3 DSA coding questions of medium and hard level. I need to solve them in 70 minutes. Coding questions were of Arrays, Linked list and Binary search trees

• Q1. Reverse Linked List Given a singly linked list of integers. Your task is to return the head of the reversed linked list. For example: The given linked list is 1...read more
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• Q2. Sort An Array of 0s, 1s and 2s You have been given an array/list ARR consisting of ‘N’ elements. Each element in the array is either 0, 1 or 2. Now, your task i...read more
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Round duration - 60 Minutes
Round difficulty - Medium

This round was majorly focused on problem solving skills and DSA. Interviewer asked me three DSA questions of medium and hard level. He started with the hard question, he asked me zig-zag binary tree traversal. we discussed the approach than I coded it and explained its Time and space complexity. Than he asked me max sum subarray modified question, I solved it using Kadane algorithm. Than he discussed one of my online assesments question and asked me to further optimize that approach that I used in the online test. Than I optimized that approach and coded that. Than he asked me for any questions and we dropped the call.

• Q1. Spiral Order Traversal of a Binary Tree You have been given a binary tree of 'N' nodes. Print the Spiral Order traversal of this binary tree. For exampl...read more
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• Q2. Maximum Subarray Sum Given an array of numbers, find the maximum sum of any contiguous subarray of the array. For example, given the array [34, -50, 42, 14, -5,...read more
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Round duration - 40 Minutes
Round difficulty - Medium

This round was mainly focused on operating systems, DBMS and past projects. we started with the introduction. Interviewer asked me explain a functionality of one of my projects that I wrote in my resume, I done that than he started asking OS and DBMS questions. After that we asked me about any bad experience in my past internship, I told that than he asked for any questions to me and we dropped the call and after 2 days I got HR mail that I'm selected.

• Q1. Operating System based Questions

  Questions about scheduling algorithms, dead lock, synchronization etc. were asked.

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Round duration - 60 minutes
Round difficulty - Medium

The nature of the interviewer was very kind. The test was proctored, our webcam and mic were on, and shared my screen.

• Q1. Diameter of the binary tree. You are given a Binary Tree. You are supposed to return the length of the diameter of the tree. The diameter of a binary tree is th...read more
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• Q2. Two Sum You are given an array of integers 'ARR' of length 'N' and an integer Target. Your task is to return all pairs of elements such that the...read more
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Round duration - 35 minutes
Round difficulty - Medium

The nature of the interviewer was very kind, helped me when I stuck. The round was proctored, our webcam and mic were on, and shared my screen.

• Q1. Basic Interview Questions

  Although it was an HR round but this question was quite a mix of tech+HR round. Some puzzles and guesstimates were asked.

   

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• Q2. How to measure 45 mins exactly using a stick that burns completely in 60 mins if burnt from one side. If we light a stick, it takes 60 minutes to burn completel...read more
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