萌新围观
by LIUYITIAN300 @ 2022-08-15 14:32:33
qp
by adidde @ 2022-08-15 16:26:57
占位
by lonely_dog @ 2022-08-15 17:12:34
$C^m_n$
$C^(n-m)_n$
$(a+b)^n=\sum_{i=0}^{n}C_n^i\times a^i\times b^{n-i}$
### 超神好吧
### 猜猜我怎么做到的吧
by Luojianwei0110 @ 2022-08-15 20:09:17
首先，我没惹任何人，但我朋友惹了，乱扩列，烦死了，被当ssd
by αΩ @ 2022-08-16 10:48:59
zc
by I_like_coding @ 2022-08-16 16:16:44
trysrtyst
by luotong315 @ 2022-08-16 17:19:10
qp
by Marvel26 @ 2022-08-17 10:15:50
后排反对
by KKKSC03_IS_SHABI @ 2022-08-17 12:46:57
第154排~~
qp
qp
by Alan_kn07_jtf @ 2022-08-17 16:20:23