摘要：
Protecting the FlowersTime Limit:2000MSMemory Limit:65536KTotal Submissions:3204Accepted:1300DescriptionFarmer John went to cut some wood and leftN(2 ≤N≤ 100,000) cows eating the grass, as usual. When he returned, he found to his horror that the cluster of cows was in his garden eating his beautiful 阅读全文
