摘要：
Longest Non-decreasing SubstringTime Limit 1000msMemory Limit 65536KdescriptionYou are given a string S no longer than 100,000 consisting of characters 0-9 only. And two kinds of operations will be performed on S:
Flip i j: for each i #include
#include
#include
#define lson t=rt[rson].lz)///中间可递减 .. 阅读全文
