Comments
On robinyu → Codeforces Round #419, 9 years ago
+1

How to solve div2 B? -_-

Yes.

On graphdp → Planar Graph Testing.., 10 years ago
0

I don't what name of it algorithm in English, but in Russian it's called gamma-algorithm. You can translate this resources by google translator: Russian wiki and Neerc Ifmo

On temp_test → Programming community, 10 years ago
+3

One of such website is Codeforces itself or something like Reddit. But I strongly recommend you to seek people in a real life because of a more efficient way of collaboration. Also, it is a good chance to demonstrate your leadership by forming your own community at the college if it does not exist yet. Good luck! :)