摘要:
Time limit 2000 ms Memory limit 65536 kB DescriptionFarmer John knows that an intellectually satisfied cow is a happy cow who w... 阅读全文
摘要:
Time limit 1000 ms Memory limit 65536 kB DescriptionYou are trapped in a 3D dungeon and need to find the quickest way out! The ... 阅读全文