type
status
date
slug
summary
tags
category
icon
password
pre:不带修改的多次询问序列区间,将查询的和变成了两个数的差值
如果一个问题中,出现多次询问序列中连续的元素和(区间和),那么就可以用前缀和进行优化
- URL:/article/dca65b63-03d5-48d4-be13-974842110553
- Copyright:All articles in this blog, except for special statements, adopt BY-NC-SA agreement. Please indicate the source!