So for the context, I made a chrome extension — CF-Daily, for Codeforces' users and after many months of watching it grow steadily, the demographic statistics look like this —

btw, I recently updated this chrome extension to display a couple of daily problems — Global and Personalised, to the users here with a new simple calendar interface on the problemset along with a submission-hooked streak system so that you guys can now feel some peer pressure and fear to not break the streak.

But I know you're human only and would want to spend some extra time with your girl/boy friend (smirk) or would not have time to solve the questions on a day, so I made this feature of adding a problem of the day to your backlog, solve it some other day and yet maintain the streak. This is just what my big brain was capable of thinking as a solution to this problem and is experimental so I would love your reviews on it irrespective of you even trying this feature (pls try pls pls).

Also I am watching just too many people cheating in contests nowadays, so for the people who genuinely participate and try to upsolve and learn, only those people are allowed to install this extension otherwise I will personally hate you. (⁠╯⁠°⁠□⁠°⁠）⁠╯⁠︵⁠ ⁠┻⁠━⁠┻

Good guys can install the extension from here — Chrome Web Store (⁠ʘ⁠ᴗ⁠ʘ⁠✿⁠)

Hey there, fellow Codeforces enthusiasts! I wanted to share with you a little project that I've been working on that I think you might find helpful. It's called CF-Daily, and it's a web extension that displays a couple of problem of the day on the problemset page of Codeforces.

There are 2 problems for each user to solve everyday- Global, which is common to every user where the rating of the problem doesn't have any limit, and Rating-wise, which suggests problem based on the rating of the user with a range of [user-rating - 200, user-rating + 200]

There is also a popup window when you click the icon of the extension which can show you the problems of any particular day (obv from the past).

All of this happened due to the powerful API of CodeForces

You can download the extension here: Chrome | Firefox

You can also contribute to it: Click Here

Let me know what you think of it, and if you have any feedback or suggestions, feel free to drop them in the comments section below.

Happy coding!