Trainee Software Engineer

Initialize variables for tracking the starting and ending indices of the longest palindrome.

Loop through each character in the string to consider it as the center of the palindrome.

Expand around the center to check for both odd and even length palindromes.

Update the start and end indices whenever a longer palindrome is found.

Return the substring between the updated start and end indices

Check string lengths: If the lengths of s1 and s2 are not the same, return false.
Concatenate s1 with itself to handle all possible rotations.
Check if s2 is a substring of the concatenated string (s1 + s1).
Return the result: If s2 is a substring, return true; otherwise, return false.

Tip 1: Emphasize the order principle: Stack uses LIFO (Last In, First Out) while Queue uses FIFO (First In, First Out).
Tip 2: Explain real-world applications: Use examples like undo operations (stack) and printer queues (queue) to make it relatable.
Tip 3: Show operations clearly: Describe operations like push()/pop() for stacks and enqueue()/dequeue() for queues to highlight differences.

• Explained ordering: HashMap has no ordering, whereas TreeMap maintains a sorted order.
• Performance considerations: HashMap offers constant time complexity for basic operations, while TreeMap has O(log n) complexity due to tree balancing.
• Use cases: HashMap is preferred for faster lookups, while TreeMap is used when sorted data is required.

Tip 1:Be honest but confident: Show self-awareness about your current stage, but express confidence in your growth mindset and learning ability.

Tip 2:Align answers with company goals: Relate your long-term goals or strengths with how they benefit the company. This shows you're thinking beyond just getting the job.

Tip3: For the failure story, choose a real failure with a clear lesson learned and be honest but avoid blaming others. Focus more on how you recovered and grew from it.