QOJ6504Flower'sLand2题解题目链接：QOJ6504Flower'sLand2题意：给定一个只包含\(0,1,2\)的序列，\(T\)次询问，询问有两种：区间所有数加\(1\)然后模\(3\)求一段区间能否通过每次删掉相邻两个相同的数删完（如\(1,0,0,2,2,1\)就满足条件）题解：考虑用什么方法来维护区间