如果你 WA Subtask0#2

x383494 @ 2023-10-18 06:11:04

3
1 2 1 1 1
1 1 2 2 1
0 2

by farfarqwq @ 2023-11-21 18:12:34

@x383494 非常感谢！

by OldDriverTree @ 2024-01-13 17:54:48

@x383494 thx

by LaiJinYi @ 2024-01-24 10:12:09

非常感谢!

by koishi_offical @ 2024-01-27 19:07:54

特判一下斜率不存在的情况