I really enjoy solving real life issues, even I sometimes work till dawn. However, leetcode problems... come on... many people can study months to solve them like a machine and it is not a commitment, it is really stupitidy. After sometime even you are getting to forget details if you do not have photographic memory. And competition to where ? Death ? People has become such a shit, sorry... We know its all about the money. However many idealists are ot money followers, they just enjoy what they are doing wihout to become a soulles machine in this monopoly world. Good luck..