This is the solutions to a randomly selected LeetCode problems.
I spent nearly two weeks in the early summer this year (2019) browsing through LeetCode problems as I was suggested to prepare for job interviews. I randomly picked a few from the collection and found it actually not very boring: they can well serve the purpose as assignments to my undergraduate students in the future. The overview of my submissions can be found in my profile
But those practices did not serve their purpose eventually: I guess technical skills are not so important for me anymore. It's never too bad to move on.