Edit- It's Up now!!!

Hello everyone ! UVa seems to be down for a long time , is there any way to practice problems of this judge or we have to just wait till it is up again ? Thanks in advance.

Hello everyone! I am new to CP and I was wondering that , is reading CLRS (Introduction to Algorithms) necessary for achieving a good level in Competitive Programming or just doing problems and learning new algorithms while encountering them for the first time using online blogs and tutorials will get the job done ?

Thank you.