大水题
我一遍就看懂题意了
by __Hacheylight__ @ 2019-02-06 09:33:46
有点问题
by 逸少 @ 2019-02-06 16:24:00
没问题的
by 逸少 @ 2019-02-06 16:32:41
我看过了
by 逸少 @ 2019-02-06 16:32:53
应该改为$P_{i}>P_{\left\lfloor\dfrac{i}{2}\right\rfloor}$
by Smile_Cindy @ 2019-04-13 11:41:42
$P_i>P_{\lfloor\frac{i}{2}\rfloor}$
by Smile_Cindy @ 2020-01-24 10:13:20