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Getting Started

1] Define the Problem and validate the inputs

Input:
  • Is it a single array? Or multiple arrays?
  • Are there any constraints on the size of the array?
  • Can the array contain negative numbers, floating-point numbers, or other data types?
Output:
  • Is it a single value, an array, or something else?
  • Are there any specific requirements or constraints on the output format?
Problem Constraints:
  • Are there any time complexity requirements for the solution?
  • Are there any space considerations for the solution?
Edge Cases:
  • Should the algorithm handle edge cases such as
    • empty array?
    • arrays with only one element?
    • arrays with all identical elements?

  1. Understand the Problem:
    • Read and comprehend the problem statement.
  2. Clarify Doubts:
    • Ask the interviewer for clarification if needed.
  3. Ask Questions:
    • Gather more information about the problem.
  4. Design a Plan:
    • Devise an approach to solve the problem.
  5. Break Down the Problem:
    • Divide the problem into smaller subproblems if necessary.
  6. Choose the Right Data Structures and Algorithms:
    • Select appropriate tools based on problem requirements.
  7. Write Pseudocode:
    • Outline the solution logic without worrying about syntax.
  8. Code Implementation:
    • Write the actual code following best practices.
  9. Test Your Solution:
    • Verify correctness and robustness with test cases.
  10. Optimize if Necessary:
    • Improve time or space complexity if possible.
  11. Handle Errors and Edge Cases:
    • Ensure graceful handling of errors and edge cases.
  12. Review and Debug:
    • Check for errors and bugs, and troubleshoot as needed.
  13. Communicate Your Thought Process:
    • Explain your approach and reasoning to the interviewer.
  14. Be Flexible and Adaptive:
    • Adapt your approach based on feedback or new insights.
  15. Practice Regularly:
    • Improve problem-solving skills through practice and mock interviews.