SP1716 GSS3 Can you answer these queries III 线段树维护最大连续子段和
https://www.luogu.org/problem/SP1716题意翻译nnn个数,qqq次操作操作0xy把AxA_xAx修改为yyy操作1lr询问区间[l,r][l,r][l,r]的最大子段和感谢@Edgration提供的翻译题目描述YouaregivenasequenceAofN(N#include#include#include#includeusingnamespacestd;co