Post here if you don't find any other place for your post. But please, stay on-topic: algorithms, programming or something related to this web site and its services.
I can imagine that the judge admin. is very busy on upgrading server these days.... Just want to say THANKS to all the people contributed to the upgrade of server
My signature:
Please make discussion about the algorithm BRFORE posting source code.
We can learn much more in discussion than reading source code.