cin>>n>>k;
cout<<n+(n-1)/(k-1);
by __Hacheylight__ @ 2018-09-01 13:16:44
@[牛寺另刂6](/space/show?uid=37088)
by __Hacheylight__ @ 2018-09-01 13:16:49
@[Harryheqg](/space/show?uid=54900) 谢谢
by 牛寺另刂6 @ 2018-09-01 13:48:13