I don't why LeetCode changed its original UI.
The new UI is not user-friendly at all.
I can't even see my variables when lines go beyond 30.
Especially when I have some stdout to print.
I doubt if the designer has experience coding in this new UI.
I'm not going to renew my premium.
My humble suggestion. Add a button for "switching to old version and keep it as the default setting". I don't like wasting time clicking switch button every time when I log in.
Thank you.