Data Patterns Software Engineer interview questions

The interview was good, the interviewer was nice and encouraging and provided me with answers for the topics that i said wrongly and gave me advise on what books should i use to crack data patterns the next time or any other company that asks for c programming

Aptitude round(quans+output prediction )--->c language Data Patterns 2nd round. There are 4 coding questions to be written in paper. 1) Simple Arithmetic Operations for two integers(+, -, *, /, %) but by a function 2) Print input String, change all consonants to Uppercase without printing vowels and count the number of vowels. I/P : hello world O/P : hello world H LL W RLD vowel count = 3 3) Basic Application for Booking Room, Cancelling Room and check Availability of rooms 4) Find the Peak waveform from the input of Array, and print Peak number, index and value. Technical interview hr interview