LinkedIn Sr. Software Engineer interview questions

Phone screen interview. It was as I expected it to be with minimal to no interaction with the interviewer during the coding questions. You would have to be really good figuring out optimal solution in given time or solved the question before hand. I was given a problem that required using a modified version of binary search. I was able to explain my approach but got caught up in the implementation part. The 2nd problem was easier since its on leetcode. Altho it was optimal and the code format was easy to follow, the feedback on the formatting was not good. I thought that's unfair. Another problem I had was I gave explanations to approaches for my solutions before and after coding. The feedback said I didn't communicate while coding. Not sure what the standard was for commination. It felt like I could say the same about the interviewer's communication.