@[zxjn](/user/891168) 是不是应该是lower_bound？不确定
by OIDragon @ 2024-02-02 16:46:26
@[OIDragon](/user/775893) thx，不过之前我已经A了（
by zxjn @ 2024-02-02 19:11:04
**此贴结**
by zxjn @ 2024-02-02 19:11:23