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EPAM Interview April2023

4/15/2023

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First Round: Codility test having 2 problems to solve in 80 mins like-
 a) Replace '? in the given string, such that no 2 adjacent alphabets are same.
     Alphabets will be in small case only.
 b) You are given array of numbers such each index represents a person & number shows
      that how many people that person can have in the same room including him/herself.
      Now you need to find the number of rooms required to accomodate all the people.
    e.g. {1,1,1,1,1} Ans:5
           {2,1,4} Ans:2

Second Round: Had basic discussion then got 3 coding problems like-
 a) determine if source string can be mamde equal to target string by either
      adding/deleting/replacing one character.
 b) determine the number of add/delete/replace opeartions needed to make source string
      equal to target string.
 c) An array pid contains the id of processes & and array ppid contains the parent id of the id at
     that index. Now you are given 1 process id to terminate. Now return the list of ids will be
     terminated including the given id.
     e.g. Input: pid = [1,3,10,5], ppid = [3,0,5,3], kill = 5
           
Output: [5,10]
 Solution: Create a Map
<Integer, List<Integer>> such that key will be process id & value will
                contain list of its child ids. Now iterate through this map to get the list of deleted ids.

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