SDE - 1

Initialize variables:
Set start = 0 and end = 0 to keep track of the starting and ending indices of the longest palindrome found.

Iterate through each character:
Loop through the string from index 0 to n-1, treating each character (or pair of adjacent characters for even-length palindromes) as the potential center of a palindrome.

Expand outwards for odd-length palindromes:
For each character i, expand outwards (i.e., check characters at i-left and i+right) while the characters on both sides match. Keep track of the longest palindrome by updating start and end indices.

Expand outwards for even-length palindromes:
Similarly, check for even-length palindromes by expanding outwards starting from indices i and i+1.

Update result:
For every palindrome found, check if its length is greater than the previously found palindrome. If it is, update the start and end indices.

Return the longest palindrome substring:
Once the loop is complete, extract the substring from start to end as the longest palindromic substring.

Step 1: Take the number N as input.

Step 2: Count the number of digits d in N.

Step 3: Extract each digit of N.

Step 4: Calculate the sum of each digit raised to the power d.

Step 5: Compare the sum with N.

Tip 1:Read Galvin’s Operating System Concepts to understand various scheduling algorithms, deadlock prevention techniques, and file system structures in detail.
Tip 2:Practice by solving problems on deadlock handling, file system design, and process scheduling to get comfortable with practical implementations.
Tip 3:Focus on the practical implications of OS concepts by studying case studies or examples of how these topics are used in real-world operating systems like Windows or Linux.

Understand the fundamentals of normalization and practice converting unsorted tables into normalized forms (1NF, 2NF, 3NF, etc.).

Practice writing SQL queries, especially those involving JOINs, subqueries, and aggregations, as they are essential for efficient data retrieval.

Tip 1: Preparation is key: Practice answering common HR questions beforehand. Structure your responses clearly and stay concise, focusing on how your skills and experiences relate to the position.

Tip 2: Be honest and self-aware: When discussing strengths and weaknesses, be truthful. For weaknesses, mention something you’re working on improving, and for strengths, focus on what you can bring to the company.

Tip 3: Research the company: Before the interview, learn about the company’s mission, values, and projects. This will help you tailor your answers to align with the company's culture and goals.

Tip 4: Focus on soft skills: HR rounds often focus on soft skills like communication, teamwork, and problem-solving. Be prepared to share examples of how you’ve demonstrated these skills in past experiences.

Tip 5: Be positive: Maintain a positive attitude throughout the interview. Even when discussing challenges or weaknesses, frame them in a way that shows growth and improvement.