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The BytePlus platform has n servers, where the data stored on the ith server is represented by the array memory. To manage the server efficiently you can perform the following operation any (possibly zero) number of times: • Choose an index idx, such that 1 ≤ idx s n/2. • Swap the data of the pair of servers that are equidistant from the beginning and the ending of the array memory and have a distance less than or equal to idx. The total working efficiency of the servers is calculated as the sum of the product of the data present in each server with the index of that server. Given an integer n, and an array emory, find the maximum possible total working efficiency that we can get, since the total working efficiency can be very large print it modulo 109+7.
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Machine Learning Engineer Intern

Interviewed at TikTok

3.2★
Dec 10, 2023

The BytePlus platform has n servers, where the data stored on the ith server is represented by the array memory. To manage the server efficiently you can perform the following operation any (possibly zero) number of times: • Choose an index idx, such that 1 ≤ idx s n/2. • Swap the data of the pair of servers that are equidistant from the beginning and the ending of the array memory and have a distance less than or equal to idx. The total working efficiency of the servers is calculated as the sum of the product of the data present in each server with the index of that server. Given an integer n, and an array emory, find the maximum possible total working efficiency that we can get, since the total working efficiency can be very large print it modulo 109+7.

Hackerrank online assessment. 5 questions intotal, 2 MCQs and 3 coding questions. First two are leetcode easy to medium, and the last one is leetcode hard. They do test you on linux stuff even if you are applying for a machine learning position.
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Machine Learning Intern

Interviewed at ByteDance

3.4★
Jan 31, 2024

Hackerrank online assessment. 5 questions intotal, 2 MCQs and 3 coding questions. First two are leetcode easy to medium, and the last one is leetcode hard. They do test you on linux stuff even if you are applying for a machine learning position.

In the first-round interview, questions focused on optimizer usage in ML (SGD vs. Adam, learning rate scheduling), a LeetCode problem on implementing MinStack with O(1) retrieval of the minimum element, and resume-based discussions on past projects, technical challenges, and problem-solving approaches in distributed systems and NLP.
avatar

Machine Learning Engineer

Interviewed at TikTok

3.2★
Mar 15, 2025

In the first-round interview, questions focused on optimizer usage in ML (SGD vs. Adam, learning rate scheduling), a LeetCode problem on implementing MinStack with O(1) retrieval of the minimum element, and resume-based discussions on past projects, technical challenges, and problem-solving approaches in distributed systems and NLP.

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