摘要：
Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 13381 Accepted: 5208 Description The cows, as you know, have no fingers or thumbs and thus 阅读全文
摘要：
Description Transmitting and memorizing information is a task that requires different coding systems for the best use of the available space. A well k 阅读全文