I've posted a few blogs since early December 2023. I'll define the difficulty level of the blogs with the below scale.

The difficulty level of my blogs are as follows:

Easy — solved within 2 hours and only 1~3 submissions

Medium — solved within 2~4 hours and around 4~6 submissions

Hard — couldn't be solved alone and peeked at the solution/ got help from a friend

Ex — completely out my skill range, took me a 1/2 days to understand the solution

Note that these are my personal opinions on the problems' difficulty.

It differs from person to person since some people are just better at certain topics.