`sum += ask ( a[i] - 1);` 改成 `sum += ask ( a[i]);`
by xiaoshumiao @ 2024-02-20 15:55:53
@[A_chicken_boy](/user/774204) 楼上错了，我试过了，只要把所有的```%d```改```%lld```（因为long long类型就得这么读入，不然还是int类型）就能AC（求关注）
by __Rickysun__ @ 2024-02-20 16:18:30
Thank you very much , 已关
by A_chicken_boy @ 2024-02-21 09:48:08