哦，我发现是直接swap(a[i],a[maxx])的锅，这样为啥不行啊
by LMB_001 @ 2019-01-27 01:38:09
@[LMB_001](/space/show?uid=41003) 感觉是找最大值交换之后double运算的时候精度炸了，换成long double好像就能过了
by dreagonm @ 2019-03-14 00:35:24