好了，cnm的yes大写
by Melodit @ 2019-02-11 23:28:10
好吧，WA了两个点，1和4
不知为啥
0和1也判了
by Melodit @ 2019-02-11 23:33:37
写啥线性筛，~~暴力可过~~
by NaCly_Fish @ 2019-02-12 00:03:03