摘要：
Full Tank?Time Limit:1000MSMemory Limit:65536KTotal Submissions:5619Accepted:1836DescriptionAfter going through the receipts from your car trip through Europe this summer, you realised that the gas prices varied between the cities you visited. Maybe you could have saved some money if you were a bit 阅读全文
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Sightseeing CowsTime Limit:1000MSMemory Limit:65536KTotal Submissions:6684Accepted:2196DescriptionFarmer John has decided to reward his cows for their hard work by taking them on a tour of the big city! The cows must decide how best to spend their free time.Fortunately, they have a detailed city map 阅读全文
摘要：
Cow RelaysTime Limit:1000MSMemory Limit:65536KTotal Submissions:4395Accepted:1748DescriptionFor their physical fitness program,N(2 ≤N≤ 1,000,000) cows have decided to run a relay race using theT(2 ≤T≤ 100) cow trails throughout the pasture.Each trail connects two different intersections (1 ≤I1i≤ 1,0 阅读全文