POI2007 == HNOI2018滚粗后,默默来刷POI
先从2007刷起
[bzoj1103\[POI2007\]大都市meg](https://blog.csdn.net/qq_39696474/article/details/80010166)
[bzoj1098[POI2007]办公楼biu](https://blog.csdn.net/qq_39696474/article/details/80010296)
[bzoj1102[POI2007]山峰和山谷Grz ](https://blog.csdn.net/qq_39696474/article/details/80022206)