摘要：
[树形DP](https://cn.vjudge.net/contest/123963#overview) #include<cstdio> #include<string> #include<cstdlib> #include<cmath> #include<iostream> #include< 阅读全文
posted @ 2018-08-06 00:54
Roni_i
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摘要：
You, the leader of Starship Troopers, are sent to destroy a base of the bugs. The base is built underground. It is actually a huge cavern, which consi 阅读全文
posted @ 2018-08-06 00:20
Roni_i
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