HCLTech interview question

Questions asked in Technical Round : 1.How to Create User Defined Header Files and How do You Differentiate Between User Defined Header File and Built in Header file 2.Write a Code to Print Sum of Integers Beginning From 20 to 100 ? 3.OOPS Concepts and Programming Language Constructs 4.Interviewer May Ask About Seminars and Workshop that You Have Attended During Your Academics HR Round 1.Tell Me About Your Self ? 2. What are Your Strengths and Weakness 3. Why Should i Hire You 4. Are You Willing to Locate 5. Are Your Aware of Terms, Condition and CTC of the Company?