The interviewer liked my resume still gave negative feedback for no reason. He said I'll have a second round but told the HR to eliminate me... So bad luck getting a moody interviewer

Online Coding Test: The first round was a coding assessment that tested our problem-solving skills and knowledge of data structures and algorithms. The questions were of medium to high difficulty and required both logic and optimization. UCAT (Universal Cognitive Aptitude Test): The second round was an aptitude-based test focused on logical reasoning, numerical ability, and pattern recognition. It evaluated how quickly and accurately we could solve analytical problems. Technical Interview Round 1: The first technical round mainly focused on data structures and algorithms. I was asked to solve problems on arrays, strings, and linked lists, along with a few conceptual questions on time and space complexity. Technical Interview Round 2: This round was more conceptual and application-oriented. The interviewer discussed topics like OOPs, DBMS, OS, and networking fundamentals, as well as my project work. I also had to explain my thought process behind design decisions in my project. Technical Interview Round 3: The final technical round was deep and practical. It included a few coding problems and some scenario-based questions where I had to explain how I would approach real-world problems using appropriate data structures or algorithms. The interviewer also evaluated my communication and problem-solving approach in this round.