orz橙名蒟蒻
by disangan233 @ 2018-12-17 18:54:15
请问您知道我哪里错了吗？@[disangan233](/space/show?uid=72679)
by Refined_heart @ 2018-12-17 18:58:49
@[Refined_heart](/space/show?uid=128591) 首先这个题不用这么做。。
**反转直接全部tag++然后tag&=1**
by disangan233 @ 2018-12-17 19:00:26
@[disangan233](/space/show?uid=72679) 您能说下我的代码哪里错了吗？您说的我听不懂啊……谢谢
by Refined_heart @ 2018-12-17 19:03:17
@[Refined_heart](/space/show?uid=128591) sgt只用维护加的`lazy tag`，每次区间+1，最后直接输出`query(xxx)&1`
by disangan233 @ 2018-12-17 19:20:45
@[disangan233](/space/show?uid=72679) 感谢
by Refined_heart @ 2018-12-17 19:33:49