@[int树先生](/user/197457) n=64全溢出了,爆ull了
by KellyFrog @ 2020-01-15 06:49:36
你mid为什么不写成
`int mid = 1 << (n - 1);`呢?
k++会薄ull(最后一个点)
by KellyFrog @ 2020-01-15 06:52:17
特判k吧,然后稍微改改
by Ciyang @ 2020-01-15 09:45:05