One97 Interview Experience | Set 3 (Backend/Node js Developer) Last Updated : 16 Aug, 2024 Comments Improve Suggest changes Like Article Like Report Round 1 Q1. Multiply two 2d matrices Q2 You are given a stack in which elements are filled at runtime. And standard push and pop operation. Now write a function in which you minimum element in the stack at any particular instance. Round 2 Q1 Given an array of size, n contains elements from 1 to n in any order(unsorted). Now one element is duplicate. Find that element without using extra space. Q2 Given an array that contains the repeated element in consecutive order. Now write a recursive function that removes successive pieces from the collection. Q3 Given an array, find subarray, which has zero-sum. Q4 Some talk on node js. and its event-driven model. Why we use Nginx as a proxy server. Q5. Find the number of unique visitors on a website having traffic up to 0.5 million daily(let's say). How will your number of unique visitors? Q6 Given a histogram, find the maximum area of a rectangle. https://www.geeksforgeeks.org/explore?page=1&company=Paytm&sortBy=submissions Related Practice ProblemsSpecial StackFind duplicates in an arraySubarray with 0 sumMaximum Rectangular Area in a HistogramMultiply MatricesConsecutive elements Comment More infoAdvertise with us Next Article One97 Interview Experience | Set 3 (Backend/Node js Developer) Anonymous Improve Article Tags : Interview Experiences Stack Matrix DSA Arrays Experiences Paytm STL +4 More Practice Tags : PaytmArraysMatrixStackSTL +1 More Similar Reads Pindexx Interview Experience For Backend Developer Application Shortlisting:The very first step was application submission and shortlisting. I applied through its official careers page and received the update within a month. Online Coding TestI was invited for an online coding test which was medium in difficulty. 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