Coupang screening round - Staff - BLR / HYD
Summary
I attended a screening round for a Staff role at Coupang, which involved solving two coding problems on HackerRank. Despite my efforts, I believe I didn't perform well, especially on the first question, and the interviewer seemed uninterested, leading me to expect a rejection.
Full Experience
Hi Folks,
I'm sharing my experience after gaining a lot from this community. I recently attended a screening round for a Staff role at Coupang, specified for BLR / HYD locations, though I'm not sure about the exact team.
The round consisted of a HackerRank link with two problems to be coded within 60 minutes. They emphasized the need for a working solution that passes all test cases.
For the second question, I successfully implemented the LFU cache and it passed all the test cases. However, for the first question, despite significant thought, I could only come up with a binary search solution that failed 3 test cases.
The interviewer seemed quite uninterested throughout our conversation, not even responding to my questions. Based on this interaction, I anticipate the outcome will likely be a rejection. I will provide an update if anything changes.
Interview Questions (2)
Complete the 'findMinBatchSize' function below.
The function is expected to return an INTEGER.
The function accepts following parameters:
- INTEGER_ARRAY dataSamples
- INTEGER maxBatches
A machine learning training pipeline processes data in batches to optimize graphics processing unit (GPU) utilization. Several users contribute data samples, and the pipeline divides them into batches of a specific size.
All data must be processed.
Multiple users' data cannot be combined for processing.
The number of batches across all users cannot exceed a limit.
Determine the minimum batch size.
Example 1
Input: dataSamples = [1, 5, 7], maxBatches = 8
Output: 2
Implement an LFU (Least Frequently Used) cache.