IBM

So they started calling for HR screening. It went pretty simple and being friendly with HR. After I passed, a couple of 2-3 weeks later, they got back with me for an online meeting with the team/manager to get to know me. They asked questions about

1st Q: Write a C function that reverses a single-linked list. 2nd Q: Write a C function that compresses a C string from a sequence of characters to a sequence of characters & the # of consecutive times they appear. For instance, Compress("aabcccdd")

There were 3 technical rounds, mainly focused on C++. They were completely asking coding questions. You need to code, and they asked questions on it. So, it's better to prepare on customized inbuilt functions. Be confident.