$n=1$ 时会除 $0$ 吧
by SSerxhs @ 2021-06-20 14:37:03
去 CF 看数据，你 RE 了，但是不是 $n=1$
by Ryo_Yamada @ 2021-06-20 14:54:45
↑ 但是 不是 $n=1$
> Diagnostics detected issues [cpp.clang++-diagnose]: p71.cpp:17:23: runtime error: index 1014917 out of bounds for type 'long long [1000010]'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior p71.cpp:17:23 in
by Ryo_Yamada @ 2021-06-20 14:55:18
@[Fее_cle6418](/user/390770) 亲测块长 `sqrt(n*2/3)` 能过
by Ryo_Yamada @ 2021-06-20 15:07:03