我直接开了long long...
~~才不告诉你我int死过一次~~
by nanatsuhi @ 2018-04-20 21:31:29
答案ans-=(gx+x)*(k/x) *(gx-x+1)/2;的时候可能会爆int，要在前面加上1LL*
附初值时同理ans=1LL*n*k
by Chester @ 2018-05-06 20:34:36
1LL*n*k
by Chester @ 2018-05-06 20:34:49
我的乘号呢？？
不会用。。。。QAQ
by Chester @ 2018-05-06 20:36:05
没开ll见祖宗
by 弦巻こころ @ 2018-11-10 20:48:02