Watching course of gamification, I reminded one interesting source — Project Euler.

- Why is this source interesting?

It's just a problemset that contains math and algorithm problems, but they have just one test. Maybe, it's a bit puzzle , so I'll explain on an example:

10001st prime Problem 7 By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13.

What is the 10 001st prime number?

Obviously, there is only one answer and one test — and that's all you need to get AC.

This source contains nearly 420 problems

During solving problems,you'll get different achievements, which will motivate you — they have cool design). E.g. they have Fibonacci Fever achievement — for solving 12 problems numbered by Fibonacci numbers.

P.S. First time I met this project two years ago — — I got 20 percent of my mark in one of subjects for solving this problems) I haven't found any posts about this project, so I wrote one.

I am also agree with you

And time limit is :

`min(YourLifeTime, ComputersLifeTime, TimeWhenPowerGoesOff-TimeWhenProgramStarts)`

?As I remember, somewhere in "About" on their site is written that every problem can be solved in less then one minute with an appropriate algorithm.

But brute force is brute force)

yes, gamification is being used. If you're interested there's also a game checkio.org which uses gamification even more (its some sort of online judge but i think its only for python). Let's stop talking about games and get to more serious problems... what did you eat between May and July 2012? (your rating graph is quite steep). Or did you decide to quit your alcohol intake?

Actually, I solved my own problems in April — one of them was called Pentium 2))

But the biggest income in this rising was made by the problemset of CF. I solved something nearly 200 problems during two or three weeks — that gave me ability to solve easy problems fast and get high positions in div2 just for fast solving.

And about gamification — actually it's not a game or gaming — this is kinda business concept, so it's quite serious thing. Sometimes, it's really hard to motivate yourself, your team to work — gamification helps — not gaming.

If you want I can share link on this course of gamification — it shows the difference of gamification and games, and,even more important, how to apply gamification on your own website or project.

Gamification course

Thanks for the link, i'm sure people will find it interesting. I know this course, i went through it quickly. Gamification takes its concept from games, that is, making things, simply put, fun. If i remember right, the concept was taken from games where you gain achievements as you progress, making it never boring = always fun to do. btw good job on solving 200 problems in three weeks.