Hey everyone,
I had written a blog post on the first three problems from the AtCoder Educational DP Contest some time ago. I have decided to make video editorials for most problems after Problem K — Stones.

Here is the post on the first three problems:
Editorial For The First Three Problems

Here are the video editorials (still being made):
Problem K — Stones
Problem Z — Frog 3 + Convex Hull Trick