Vladmidir
commented
9 months ago I suggest against splitting the page in 2.
My vision is that the work will be done in the editor in the separate tab and the submission would be a separate tab also.
Again, this is similar to the FrontendMentor design below
Page to enter solution for a particular challenge.
Possible design similar to leetcode is to have challenge details page on the left of the screen and solutions page on the right half of screen.