`lower_bound(v.begin(), v.end(), cmp)`
by 菡萏 @ 2022-06-10 20:16:06
祖传
by Celestial_Intertwine @ 2022-06-10 20:16:21
@[Lotuses](/user/414231) 我不会STL
by kawaii__yuyu @ 2022-06-10 20:16:45
@[Eternal蒟蒻](/user/398190) 谢谢，最近在犇犇里看到的就是这个
by kawaii__yuyu @ 2022-06-10 20:17:05
@[lyhqwq](/user/100690) ？在犇犇看到了为什么发帖呢？
我不理解
by Celestial_Intertwine @ 2022-06-10 20:17:52
对于数组而言
`location = lower_bound(a, a+n, cmp) - a;`
by 菡萏 @ 2022-06-10 20:18:02
@[Eternal蒟蒻](/user/398190) 因为没有找到，还有就是这两个最后是都输出 $l$ 就可以吗？
by kawaii__yuyu @ 2022-06-10 20:19:03
@[Lotuses](/user/414231) 谢谢，受教了
by kawaii__yuyu @ 2022-06-10 20:19:19
@[lyhqwq](/user/100690) 是的
by Celestial_Intertwine @ 2022-06-10 20:19:26
因为最后是 $l=r=mid$
by Celestial_Intertwine @ 2022-06-10 20:19:55