Not taking anything away from GVR, but I bet he does not pass leetcode medium/hards in time allotted without specifically practicing these for a while. I could be wrong.
I'd imagine no matter the problem he would breeze through an interview and leave the interviewer with some enlightenment on programming. It wasn't necessarily about whether the code was "correct". I remember once interviewing a ~20-year old for the summer program who when I gave him a problem he started talking about some linear algebra and geometry that I didn't even know were relevant but quickly made sense to me. But he was so humble about it, and looking to me like he wasn't sure if it was the right approach to take (It was hard to keep a poker face and not give away that he was a "definite hire" after about 5 minutes). His 5-liner to solve it had one bug but he clearly "passed" with flying colors. Unfortunately for us he ended up joining a startup in SV (and now is doing big things there).