Today I was talking with a couple of friends at work about some colombian code ninjas that are working on very interesting projects around the world and I've decided to step up my game; this is why I am taking a 300 problem challenge to help me regain some skills I lost since I stopped competing.

The conditions for the challenge are the following:

All solutions should be added to my competitive programming repo and a quick summary should be posted.
~~The time limit is ~100 days (until the end of 2015 on AoE)~~ No limit, just do it.
There should be no more than 200 easy problems (levels A,B on Codeforces, 250 - 500 div2 on Topcoder, etc) and there must be at least 50 hard problems (Codeforces D or Topcoder 500+ div1).
Any programming language is allowed.
I should take part in as many programming competitions as possible.

The odds are against me since this is not the first time I try to do something like this. However, I hope that the shame of not delivering after writing this post motivates me to try and do it.

FAQ

Why 300? Why not 500 or 1000?
- I have to work and study other subjects. I have to step up my whole game, not just cp.
Why 100 days? were you waiting for today to start the challenge?
- Nope, coincidence.
Do you really think you can do it?
- heh.