VO Assistance, namely Virtual Onsite, provides real-time support during online interviews by sharing audio and documents throughout the interview Q&A process. With extensive experience in interview assistance, we help you secure your desired job offer. We assist with your OA and VO so that you do not need to spend significant time practicing algorithm problems, memorizing standard answers, or studying system design to enter top internet companies.
VO Assisted Process
During the interview, we record problem-solving approaches, answers, and relevant annotations in shared documents. Your task is to read these materials and accurately copy the code into the designated interview document.
- Confirm the interview time with us and perform equipment testing; once everything is functioning properly, pay half of the deposit.
- Interview assistance covers behavioral questions (BQ), project resume deep-dives, technical standard coding questions, system design, and all other interview-related content. Project documents need to be sent in advance for our review.
- While interviewing, we are able to see all the contents of your desktop and through ourSelf-developed shared documentsWrite a prompt message to show you the final result as shown in the figure. Auxiliary documents are not detectedprinciple.
Interview Process
We not only offer interview assistance services but also provide interview proxy services. For candidates with weak coding or computer knowledge, we offer proxy interviews, divided into lip-sync and full replacement modes.
- Lip-sync Mode.
We will conduct a mock test with you in advance to coordinate. Your face will be synchronized with my voice. Equipment will be tested beforehand, and precautions will be explained. With our rich practical experience, we ensure the interview runs smoothly. - Full Replacement Mode:
We completely replace you during the interview. You only need to provide your resume and personal information. The interview will be fully recorded. This mode is suitable when the interviewer and the position belong to different teams, such as Amazon SDE interviews.
We guarantee full passes on Hackerrank written tests and perfect scores on VO interviews. Services include Hackerrank proxy exams, Codesignal proxy exams, OA assistance, interview proxy, and guaranteed lip-sync success.
Real case studies of interview assistance:
Problem: Generate Valid Parentheses Combinations
Description: Inputs a positive integer n and outputs all valid combinations consisting of n pairs of parentheses.
Example: Input: n = 3
Output: ["((((()))", "((()())", "(()())", "(()()()"]
Examination points: Backtracking ( Backtracking), code clarity, boundary condition handling, time/space complexity analysis.
Optimization problem: How to optimize the algorithm when n is large (e.g., close to 10)?
Candidate’s approach:
- Memoization – use caching to reduce repeated computations. Dynamic Programming (DP)
- Generate all parentheses combinations from the bottom up.
Interviewer feedback: The candidate showed a solid understanding of memoization, effectively avoiding redundant subproblems. Suggested replacing recursion with iteration to optimize stack space.
Meta SDE Interview Share 1 – Minimum Size Subarray
Question Description:
Given an array of positive integers nums and a positive integer target, find the shortest consecutive subarray of the array such that the sum of the digits in the subarray is greater than or equal to target . Return 0 if it does not exist.
Solution: Sliding Window
- Maintain a sliding window with two pointers.
- Move the right pointer to expand the window until the sum within the window is at least target.
- Then move the left pointer to shrink the window until the sum no longer satisfies the condition, recording the minimum window length at that point.
Time Complexity: O(n).Space Complexity: O(1)
Follow-up:
- What if the array contains negative numbers?
- What if we want to return this shortest subarray itself?
Meta SDE Interview Share - Vertical Traversal of Binary Trees
Problem Description:
Given a binary tree, return its vertical order traversal. For each vertical column of the tree, output the node values from top to bottom. If two nodes are in the same position, output them in ascending order of their values.
Solution: BFS + hash tables
- Use a hash map to record node values for each vertical column, with the column index as the key and a list of node values as the value.
- Use BFS to traverse the tree, storing each node’s value along with its column index.
- Finally, sort by column index and output the results.
Time Complexity: O(n log n).Space Complexity: O(n)
Follow-up:
- How to optimize hash map storage if the tree is very large and column indices are very large (possibly negative)?
- How to return values maintaining the node levels as in the input tree?
Conclusion
After VO real-time assistance, the candidate successfully passed these interviews. We not only provide support on Code and Algorithm, but also System Design and Technical Eight can help.
If you are interested in our services, feel free to contact us.
