Farmer John and his cows are planning to leave town for a long vacation, and so FJ wants to temporarily close down his farm to save money in the meantime. The farm consists of N barns connected with M bidirectional paths between some pairs of barns (1≤N, M≤3000). To shut the farm down, FJ plans to close one barnContinue reading “USACO 2016 US Open #3 (Silver): Closing the Farm”
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