Microsoft Coding Interview | Summary and Q&A

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April 19, 2022
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Fraz
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Microsoft Coding Interview

TL;DR

The video demonstrates effective problem-solving and communication during mock coding interviews.

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Key Insights

  • 👨‍💻 Mock interviews serve as valuable practice sessions where candidates can refine coding skills and articulation of solutions.
  • 👨‍💻 Candidates should aim for a balance between code efficiency and clarity, ensuring their solutions are optimal while being understandable.
  • 👨‍💻 Utilizing appropriate data structures, like deques, can greatly enhance algorithm performance in coding challenges.
  • 💭 Communication skills are as important as technical skills in interviews, with an emphasis on explaining thought processes.
  • 👨‍💻 Attention to detail in coding, such as variable naming and indentation, is crucial for demonstrating professionalism and understanding.
  • 🦔 Candidates should prepare for randomness and edge cases, considering all possible scenarios before presenting their solutions.
  • ❓ Feedback from interviews should be actively sought and used for continuous improvement.

Transcript

hi everyone welcome to another mock interview this time the interviewer is maliha my own sister but don't worry she's never going to reveal me what the questions are before we start please watch the video till the end and look at the thought process look at how i am coming up with an approach and how basically i am discussing it with the interviewe... Read More

Questions & Answers

Q: What is the primary coding problem discussed in the video?

The primary coding problem focuses on finding the largest element in a sliding window of size k from an integer array. The interviewer poses this question, prompting the candidate to explain their approach and optimize it beyond the naive solution, which would involve a time complexity of O(n*k).

Q: How does the candidate improve the initial naive solution for the sliding window problem?

The candidate suggests maintaining a deque (double-ended queue) that holds potential maximums for the current window while removing elements that are no longer useful when the window slides. This approach reduces the time complexity to O(n), as each element is processed once, optimizing efficiency.

Q: What is the significance of expressing solutions effectively in interviews, according to the content?

The content stresses that candidates often know the solutions but struggle to convey their thought processes clearly. Effective communication allows interviewers to understand the candidate's reasoning and decision-making, which can significantly impact the interview outcome.

Q: How does the video suggest handling edge cases in coding problems?

The video highlights the importance of considering edge cases, such as checking if the window size k exceeds the number of elements in the array. If k is larger, the candidate must return an empty array, showcasing awareness of potential pitfalls in their solution.

Summary & Key Takeaways

  • The content features a mock interview with a coding question focused on finding maximum values in sliding windows of an integer array, showcasing the thought process of the candidate.

  • It emphasizes the importance of effectively expressing solutions to interviewers, highlighting common difficulties candidates face in articulating their approaches.

  • A secondary problem involving efficient data structure implementation for random number retrieval is also discussed, demonstrating techniques for managing and manipulating data efficiently.

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