摘要： Gold Balanced LineupTime Limit:2000MSMemory Limit:65536KTotal Submissions:7983Accepted:2357DescriptionFarmer John'sNcows (1 ≤N≤ 100,000) share many similarities. In fact, FJ has been able to narrow down the list of features shared by his cows to a list of onlyKdifferent features (1 ≤K≤ 30). For 阅读全文