Hi, can someone provide Regional's links that has solutions for problems, i want to train with regionals, and if i can't solve some problem i want to be able to see the solution after i tried it and in that way learn how to solve it.

Hi, i published this at Topcoder but nobody answer it.

May someone provide a list of subjects to learn and to start solving marathon matches at TC?

Hi, i have been watching this post

http://mirror.codeforces.com/blog/entry/11369

and i would like to do something similar to this, the problem is that i don't know how they train during that moment, if someone that trained with them can share with us how they train would be great for doing a group similar but with people with a lower rank.

Hi, i don't know if it is only me, but lately i see some people complains about de time when the codeforces matchs start, this include myself, and i want to know if is possible to make a poll to the time when the people prefer the codeforces rounds to start, maybe to make a little change in the time when it starts. It is only an idea to make more people to participate in CF rounds, and to change the time to the hour when more people agree with the start of the rounds, so, what do you think?

i was thinking this problem for hours, and i do not get how to solve in time.

the link:

https://icpcarchive.ecs.baylor.edu/index.php?option=onlinejudge&page=show_problem&problem=4330