Druva Interview Experience, Pune

Round 1: This was an Online test for 90 min this round contains 5 sections. 

• 5 Operating System concepts questions.
• 5 Networking concepts questions.
• 5 Database concepts questions.
• 5 Output C based questions.
• 3 Coding questions. 
  • String decompression. A compressed string is given a2b3c5 which will decompress to “aabbbcccc”, an index is given. 
    Eg:6. You need to return character from a decompressed string at that index. Answer:c. return -1 if you cannot find character
  • Matrices of students and subjects are given the need to find out maximum subjects a student can opt for.

Round 2: This was a face to face round for 90 min. 

• Tell about a recent project you are doing?
• From given string “1123442”, find all substrings which can be palindromes. Substrings need not be present in palindrome itself, It needs to be re-arranged. 
  Example: Palindrome substrings can be 
  

  11, 131, 121, 14241, 14341, 1123211

You need to code the solution then optimize your solution.

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