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Paytm Interview Experience | Set 30

  • Difficulty Level : Easy
  • Last Updated : 03 Sep, 2018

Round 1: Online Coding Round First round is an online programming round with 2 questions.

  1. Given an array of elements and change the array in such a way that all the elements on the array are distinct. if you are replacing a value, then the replacing value should be great than the previous value and after modification sum of the elements should be as less as possible. Example: arr[1, 2, 3, 4, 5, 5, 5] and the result should be [1, 2, 3, 4, 5, 6, 7]  example 2 [1, 2, 5, 7, 8, 8, 7] then the result should be [1, 2, 5, 7, 8, 9, 10] or 1, 2, 5, 7, 8, 10, 9]
  2. The second question is similar to LCS with a slight modification. that is Find a longest common subsequence that all the characters present in the subsequence should be of vowels.
    1. Example : input abcef, ffiocd then the answer should be 3 (abc, ioc)

Round 2: Face to Face interview: Basically, they are hiring only for the Java developers. and their further rounds will be on Java only. But in my case I don’t have much experience with Java. so mine was based on data structures and algorithms.

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  1. First question in on the implementation of LRU cache.
  2. Second one is on rotating the matrix 90 degree.

Round 3: Face to Face interview 2: 1.  Find the missing and repeating elements on the array. the output should also include the number of times the repeating elements occur. 2. Second is a stock span problem.

My Personal Notes arrow_drop_up
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