Andrew Stankevich Contest 45 (ASC 45)

Problem A

Solved by ultmaster. 01:59 (+3)

ultmaster: 罚时不是我贡献的。

kblack: 没错就是我干的！

Problem B

Solved by ultmaster & zerol. 04:05 (+14)

ultmaster 写错了若干个地方。疯狂 GG。

Problem C

Upsolved by kblack. (-2)

正确的 DP 状态是 (长度, 最后一个元素, 下界, A, 出现的数字的bits）之后枚举下一个数即可。使用BFS，状态不会遇到太多，代码写得略辣鸡，本地跑了60s。。。看来不够RUSH！

Problem D

Solved by ultmaster. 00:47 (+)

做过经典题 Random Walk 的人都知道，套路一下就好了。（当然做过忘了的人又找了好久的规律）

Problem E

Upsolved by ultmaster.

没时间了。

Problem F

Solved by zerol. 01:18 (+2)

Problem G

Unsolved.

Problem H

Unsolved.

Problem I

Unsolved.

Problem J

Unsolved.

Problem K

Solved by kblack. 02:16 (+)

ultmaster: 稳健的 kblack 一通暴力，一发过了。。。。（膜

放入圆形的套路，二分半径 R，所有边往内部缩 R，然后看最远距离有没有 2R 即可。