Now, when you invite other coders to join the challenge, you get one more chance to win a present!
Calculation is easy :
For 3 friends you invite who take part in the challenge and who get a score higher than zero (that for sure can be done!), you win a CodinGame t-shirt*
For 10 persons invited (and who do better than zero ;-), you get a Raspberry Pi*!
How? Simply by sharing (on Twitter, Facebook, by email, wherever you like) the dedicated link you received in your registration email.
* within the limit of available stocks: 10 Raspberry Pi and 50 T-shirts