?
麻烦说清楚一点
by Masna_Kimoyo @ 2021-05-09 11:53:53
组合数 c(n,m)
by Dragon_Knight @ 2021-05-09 11:54:18
没有。自己算。
by ud2_ @ 2021-05-09 12:08:50
@[kali的传人](/user/85657)
没理解错的话,你是要说的排列组合里的组合吧
这东西有公式啊,很难写吗,,,
by Masna_Kimoyo @ 2021-05-09 12:09:02
懒得写
by Dragon_Knight @ 2021-05-09 12:14:59
懒就别学OI
by 听取MLE声一片 @ 2021-05-09 12:17:36
@[kali的传人](/user/85657)
by 听取MLE声一片 @ 2021-05-09 12:17:51
> 组合数函数将会臭名昭著
by E1_de5truct0r @ 2021-05-09 12:35:07
你不会组合数式子吗。。不会阶乘写法吗。。
by Fatalis_Lights @ 2021-05-09 12:45:59
问一下咋啦?
by 966123anyunchuan @ 2021-05-09 13:08:38