Oracle

1. 1

   Technical interview

   Technical interview with live coding and project review
   Zoom, HackerRank90 minvirtualeasy

   data structures · stacks and queues · secure development · vulnerability analysis · Linux · Docker · GitHub

   Candidate reviewed the company's open-source security project repository before the interview and was asked for architecture understanding and improvement suggestions.

Advice from candidates

34 pieces of advice, in their own words. Names removed.

• As the questions in the coding test were not that difficult, preparing from the SDE sheet should be enough. But, you must also be able to think about different logical solutions to a problem in a contest. Thus, giving contests can help.

  preparation · 2023

• The technical rounds were even easier than the coding test; thus, they only required communication skills and ethics.

  interview · 2023

• Some DSA sheet. (could be striver, love babbar or any other)

  preparation · 2023

• The coding round for this company was not particularly difficult but I would suggest you do questions from multiple sheets of the topic which you were not proficient enough in.

  preparation · 2023

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Question patterns reported

The kind of problem, not the problem itself. Our practice questions are written to match these patterns.

• Technicalimplement a queue using two stacks with amortised O(1) operations
• Codingmin cost along two lines with switch fee, 2D DP
• Codingcount pairs where XOR exceeds AND
• Codingcycle in repeated pointer jumps with huge step count
• Technicallongest run of same character
• Technicaltree flatten to linked list in place
• Technicaltop-3 of 25 using races puzzle
• Technical100 toggled bulbs puzzle
• Technicalballs-in-two-boxes probability puzzle
• Technicalmagic number as sum of proper divisors
• TechnicalArmstrong number check
• Technicalfind missing and repeated number in range
• Technicalpower-of-two check
• Technicalall permutations of a string
• Technicalwater jug measuring puzzle
• Technicalminimum socks for a pair puzzle
• Technicaldelete nth node of linked list
• Codinggrid path maximising collected value, move down with three choices
• Codingfetch paged JSON and aggregate by region
• CodingSQL filter and order by concatenated name length
• Codingtree property from traversals
• Technicalstore words so prefix lookup returns matches
• Technicalmax heap implementation
• Technicallinked list of bits to integer