摘要： CompromiseTime Limit:1000MSMemory Limit:65536KTotal Submissions:5486Accepted:2478Special JudgeDescriptionIn a few months the European Currency Union will become a reality. However, to join the club, the Maastricht criteria must be fulfilled, and this is not a trivial task for the countries (maybe ex 阅读全文

摘要： ZipperTime Limit:1000MSMemory Limit:65536KTotal Submissions:14193Accepted:4992DescriptionGiven three strings, you are to determine whether the third string can be formed by combining the characters in the first two strings. The first two strings can be mixed arbitrarily, but each must stay in its or 阅读全文

摘要： Shortest PrefixesTime Limit:1000MSMemory Limit:30000KTotal Submissions:11052Accepted:4686DescriptionA prefix of a string is a substring starting at the beginning of the given string. The prefixes of "carbon" are: "c", "ca", "car", "carb", "carbo 阅读全文

摘要： Testing the CATCHERTime Limit:1000MSMemory Limit:30000KTotal Submissions:13396Accepted:4905DescriptionA military contractor for the Department of Defense has just completed a series of preliminary tests for a new defensive missile called the CATCHER which is capable of intercepting multiple incoming 阅读全文