摘要： Last summer Peter was at his granny's in the country, when a wolf attacked sheep in the nearby forest. Now he fears to walk through the forest, to wal 阅读全文

摘要： ZS the Coder and Chris the Baboon has explored Udayland for quite some time. They realize that it consists of n towns numbered from1 to n. There are n 阅读全文

摘要： It's election time in Berland. The favorites are of course parties of zublicanes and mumocrates. The election campaigns of both parties include numero 阅读全文