Hi competitive programmers and especially who writes problem solutions in JavaScript. I'm among them, yes I'm a little crazy too;)
I've already participated in two contests. In first for div 2 I've managed to solve 2 problems, but in next for div 3 I've just solved 1 and was a little disappointed about that. I decided to skip next one but curiosity took over me and I've looked to first problem in such an epic contest Educational Codeforces Round 146 (Rated for Div. 2).
1814A - Монеты after some thinking about and scratching some expressions on paper i saw a math model of solution and it looked like to transfer 2 bits over wire and i jumped in contest room but failed( My assumptions were wrong( But thanks to Codeforces I can see other's solutions and I've updated my JS code but kept failing.
Thanks to shakhnoov I figured it out and now I'm presenting you JavaScript solution runner CodeforcesIO and for testing CodeforcesTester.
You if you found it helpful for you than I'm really glad! Thank you and happy coding!