Cracking Google's Software Engineer Interview: Mastering String Manipulation

Software Engineering
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google | Software Engineer | Interview Experience

Interview Date: Not specified
Result: Not specified
Difficulty: Not specified

Interview Process

The interview consisted of two main rounds: a coding round and a behavioral questions round.

In the coding round, the candidate was given a string manipulation problem that involved reversing each word in a given string while maintaining the original spacing. The interviewer asked about the time complexity (Big O notation) and encouraged the candidate to ask clarifying questions.

The behavioral questions round was more intense and included situational questions rather than standard behavioral questions. The interviewer asked approximately 5-6 hypothetical questions, indicating that there were no definitive correct answers. The candidate felt that their responses were average, as the interviewer would often provide an alternative answer after hearing the candidate’s response. The round concluded with the candidate being asked if they had any questions, and it ended about five minutes early.

Technical Questions

  1. Reverse Words in a String

    • Topics: String, Divide and Conquer, Slicing
    • Question: Given a string, write an algorithm to reverse each word while keeping the spaces in the same order. The input string contains only letters and spaces, with no leading or trailing spaces and exactly one space between words.
    • Example:
      • Input: “the sky is blue”
      • Output: “eht yks si eulb”
    • Constraints: The length of the string will not exceed 10^4.

  2. Project Management Scenario

    • Topics: Project Management, Teamwork, Contingency Strategy
    • Question: Imagine you are leading a project and close to the deadline, a key team member suddenly falls ill and leaves. How would you ensure the project is completed on time and maintains quality? Discuss different coping strategies and provide the solution you believe is most effective.

Tips & Insights

  • Be prepared to discuss your thought process during coding challenges and ask clarifying questions.
  • For behavioral questions, think through hypothetical scenarios and have a structured approach to your responses.