Score : $100$ points

问题描述

Takahashi 每天在 $S$ 点（按照 24 小时制）打开房间的灯，并在每天 $T$ 点关闭它。 当灯亮着的时候，日期可能发生变化。

判断在 $X$ 点过 $30$ 分钟时，灯是否是亮着的。

以上为通义千问 qwen-max 翻译，仅供参考。

Problem Statement

Takahashi turns on the light of his room at $S$ o'clock (on the $24$-hour clock) every day and turns it off at $T$ o'clock every day.
The date may change while the light is on.

Determine whether the light is on at $30$ minutes past $X$ o'clock.

Constraints

• $0 \leq S, T, X \leq 23$
• $S \neq T$
• All values in input are integers.

Input

Input is given from Standard Input in the following format:

$S$ $T$ $X$

Output

If the light is on at $30$ minutes past $X$ o'clock, print Yes; otherwise, print No.

Sample Input 1

7 20 12

Sample Output 1

Yes

The light is on between $7$ o'clock and $20$ o'clock. At $30$ minutes past $12$ o'clock, it is on, so we print Yes.

Sample Input 2

20 7 12

Sample Output 2

No

The light is on between $0$ o'clock and $7$ o'clock, and between $20$ o'clock and $0$ o'clock (on the next day). At $30$ minutes past $12$ o'clock, it is off, so we print No.

Sample Input 3

23 0 23

Sample Output 3

Yes

update @ 2024/3/10 09:57:58