USACO 2006 January Gold
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Redundant Paths
In order to get from one of the F (1 <= F <= 5,000) grazing fields (which are numbered 1..F) to another field, Bessie and the rest of the herd are forced to cross near the Tree of Rotten Apple原创 2015-04-23 17:03:58 · 438 阅读 · 0 评论 -
The Grove
The pasture contains a small, contiguous grove of trees that has no 'holes' in the middle of the it. Bessie wonders: how far is it to walk around that grove and get back to my starting position?原创 2015-04-24 19:23:06 · 348 阅读 · 0 评论