@[Xy_top](/user/637796) $2^{18}$ 好像没到 $2\times10^5$。。。。。
by ForgotDream_CHN @ 2023-08-07 22:26:36
呸是 $3 \times 10^5$
by ForgotDream_CHN @ 2023-08-07 22:26:52
@[ForgotDream_CHN](/user/750067)
2^18+2^17+2^16+..+2^0 > 3*10^5。
不会建议最好别乱发言
by Xy_top @ 2023-08-07 22:31:18