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Paytm Interview Experience | Set 13 (For Experienced)

  • Difficulty Level : Medium
  • Last Updated : 29 May, 2019
  • 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 algorithms questions.
    2. Write a program to convert decimal Number to Hexa-decimal.
    3. Some Database design related problems.
    4. Some SQL queries.

    I answered almost all questions of 2nd Round.

  • 3nd Round : Tech Interview
    1. re-arrange array element in such a way so combining all array element will result in maximum number.
    2. 2 Puzzles
    3. Some API related questions

    Didn’t solved puzzle (Non-technical).

  • 4th Round: Tech Interview
    Interviewer was VP of the company.
    1. Implement function which add n days to given date without using inbuilt library. (Production level code was required.)
    2. There are n Thread , n/2 thread are producer and n/2 are consumer, number produced by producer-1 thread must be consumed by consumer-1 thread. Thread must also run in order, producer 1, then consumer 1, again producer 2 and then consumer 2…so on…..

    (Production level code was required.)



    wrote both of code with zero errors.

  • 5th Round: HR
    HR just told me you are selected and asked me about salary expectation.

 

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