Helica:
博客地址:https://www.cnblogs.com/helica/
Helica:
博客地址:https://www.cnblogs.com/helica/
2016shenyang-1002-HDU5893-List wants to travel-树链剖分+线段树维护不同区间段个数
HDU2389-Rain on your Parade-二分图匹配-ISAP
HDU2444-The Accomodation of Students-判断是否为二分图+ISAP