t1:组合数问题
之前有ac代码来着……现在找不到了,回头再补个
t2:蚯蚓,三个队列维护,前两天刚做
之前博客:http://www.cnblogs.com/Loi-dfkdsmbd/p/7799604.html
t3:愤怒的小鸟
丢个dalao博客:http://blog.csdn.net/qq_36312502/article/details/78482945