情况2是错的
```
input:
2
100 -200
```
by Henry2012 @ 2024-07-30 17:23:54
@[wei_learn_city](/user/1366067) 二分初始血量
by keep_shining @ 2024-07-30 17:24:17
这题是二分
by Henry2012 @ 2024-07-30 17:24:39
@[wei_learn_city](/user/1366067) 对于每个血量看看能否到达
by keep_shining @ 2024-07-30 17:25:25
@[Henry2012](/user/745332) 明白了 思路漏洞 谢谢大佬
by wei_learn_city @ 2024-07-30 17:40:49