让我猜猜。没开 `long long`。
by Terrible @ 2024-02-14 20:27:09
极端数据:
$c=1$,$10^5$ 个 $1$ 和 $2$,
答案是 $10^{10}>2^{31}-1$。
by Terrible @ 2024-02-14 20:30:07
@[Terrible](/user/195942) 女子白勺,AC了
by jjy2023 @ 2024-02-14 20:47:16