由数据范围，得
long long。
by LegendaryGrandmaster @ 2023-08-06 21:38:47
$-10^{15}\le x\le10^{15}$
by xuzihao123 @ 2023-08-06 21:48:25
@[LegendaryGrandmaster](/user/686297)
long long 没用
by WJR2023 @ 2023-08-07 12:01:09
@[WJR2023](/user/1053196) 你代码有问题还好意思说 long long 没用。
by LegendaryGrandmaster @ 2023-08-07 12:26:46