zoj3820 Building Fire Stations 树的直径+二分
http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3820
Building Fire Stations
Time Limit: 5 Seconds Memory Limit: 131072 KB Special Judge
Marjar University is a beautif
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2014-10-13 23:39:51 ·
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