Hackerrank: one-third of an acre: Akuna Capital OA interview analysis

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Preparing Akuna Capital Online Assessment, the first reaction of many students is to go to HackerRank to answer questions, or to search for relevant interview experience. However, after actually browsing, you will find that the Akuna Capital OA information on the one-third-acre land is relatively scattered, and the topic descriptions are often incomplete and it is not friendly to candidates who participate in Akuna OA for the first time.

This article is compiled based on the feedback of multiple real candidates who completed the Akuna Capital Hackerrank OA. Combined with the actual test question types of HackerRank, it systematically sorts out the overall structure, question types and pitfalls of the OA to help you complete the test more efficiently within a limited time.

Akuna Capital OA has 13 questions in total: 10 C++ knowledge multiple choice questions and the last 3 programming questions, all on Hackerrank AC.

Akuna Capital’s online assessment has 13 questions in total: 10 C++ multiple-choice and 3 coding problems, all solved on Hackerrank.

Akuna Capital OA Overall Process Overview

Judging from public information and candidate feedback, Akuna Capital OA is mostly completed through the Hackerrank platform.
After passing the OA, you will enter the subsequent telephone interview or technical interview stage.

Unlike some Internet companies, Akuna Capital prefers the combination of trading and technology, and has higher requirements for basic algorithmic capabilities + logical stability, rather than simply examining complex techniques. This point has also been mentioned repeatedly in many Akuna interviews on hackerrank.

Akuna Capital OA real question sharing

OA 1: Poor score in card games

Two players, Sabrina and Mikhail, alternately draw cards from opposite ends of the deck. If the value of the drawn card is a multiple of 3, flip the direction of the card pile; otherwise, keep the current direction. The implementation function returns the difference between Sabrina's score minus Mikhail's score. A positive value means Sabrina wins, a negative value means Mikhail wins, and zero means a draw.

Two players, Sabrina and Mikhail, alternately draw cards from either end of a deck. If the drawn card is a multiple of 3, the deck orientation flips; otherwise it stays the same. Implement a function that returns Sabrina’s score minus Mikhail’s.

Time Complexity: O(n)

OA 2: Convert Roman numerals to integers

Extracts Roman numerals from a string and converts it to a decimal integer, following the addition/subtraction rules (subtract if the smaller value is to the left of the larger value, add otherwise).

Extract a Roman numeral from a string and convert it to its integer value, applying standard addition and subtraction rules.

How to prepare more specifically for Akuna Capital Hackerrank OA?

After sorting out the core information of the Akuna Capital Hackerrank OA, it is not difficult to find that although it does not test complex skills, the 10 multiple-choice questions in C++ require high basic rigor, and the 3 programming questions (such as card games and Roman numeral conversion) focus on algorithm logic and scenario adaptation. Also, the public information is scattered and the question descriptions are incomplete. It is easy to get into trouble when preparing for the exam for the first time.

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Alex Ma Staff Software Engineer
Currently working at Google, with more than 10 years of development experience, currently serving as Senior Solution Architect. He has a bachelor's degree in computer science from Peking University and is good at various algorithms, Java, C++ and other programming languages. While in school, he participated in many competitions such as ACM and Tianchi Big Data, and owned a number of top papers and patents.
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