[usaco]5.4.5 Big Barn题解

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[usaco]5.4.5 Big Barn题解

云雷 2011-10-08 10:19:00 浏览855
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5
 
Big Barn

A Special Treat
Farmer John wants to place a big square barn on his square farm. He hates to cut down trees on his farm and wants to find a location for his barn that enables him to build it only on land that is already clear of trees. For our purposes, his land is divided into N x N parcels. The input contains a list of parcels that contain trees. Your j

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