Pretty basic leetcode mix, the overall experience was good and respectful the only problem is my friend works there and in other departments the interviews may differ to make an even better process

Applied online, got call from recruiter next days, interview scheduled. Round 1- DS/Algo Advanced DSA topics minheap max heap, graph questions 20 min went into project description Interviewer wanted you to code 3 leetcode hard problems from min heap, max heap, graph within 40 min. I coded one in 15 min, other questions I explained the approach correctly(I verified after interview). He wanted to code me in such small time thats impossible for anyone. Show lack of experience, not adequate knowledge how to take interview