有略微不同，而且已经有人发过
by Justin090102 @ 2022-02-20 19:37:12
就是除以二的区别（
by Jerrlee✅ @ 2022-02-20 19:38:30
诶别直接交啊……这题数据范围大……好歹卡一下常吧……虽然大概率卡不过……
by Jerrlee✅ @ 2022-02-20 19:45:26
啊对对对
by piggy123 @ 2022-02-20 19:46:46