摘要：
All in AllTime Limit:1000MSMemory Limit:30000KTotal Submissions:18735Accepted:7461DescriptionYou have devised a new encryption technique which encodes a message by inserting between its characters randomly generated strings in a clever way. Because of pending patent issues we will not discuss in det 阅读全文
摘要：
Spell checkerTime Limit:2000MSMemory Limit:65536KTotal Submissions:10470Accepted:3871DescriptionYou, as a member of a development team for a new spell checking program, are to write a module that will check the correctness of given words using a known dictionary of all correct words in all their for 阅读全文
摘要：
Who's in the MiddleTime Limit:1000MSMemory Limit:65536KTotal Submissions:18274Accepted:10380DescriptionFJ is surveying his herd to find the most average cow. He wants to know how much milk this 'median' cow gives: half of the cows give as much or more than the median; half give as much o 阅读全文