# [-----------试卷题目下载链接-----------](https://tszhyvdj2m.feishu.cn/file/Lk9TbxzQFosEwXx8jxoczSRKnGe?from=from_copylink)


# 一、上周homework

![](https://attach.acgo.cn/picture/fc0267f0ebc34c80819d2d45c2c58b8f.png)

![](https://attach.acgo.cn/picture/a7b629b9c9b8412f9a438c551cf82ec7.png)


![](https://attach.acgo.cn/picture/559b21e755a0477587faa0f0f82b06c2.png)

![](https://attach.acgo.cn/picture/a9ceab6dbdb44d30a9f53399187717ac.png)


# 二、本次homework


![](https://attach.acgo.cn/picture/f96e0bb6a6b64b7b97b4afb21c004d38.png)



![](https://attach.acgo.cn/picture/ab46cfc4f2364986afdb51a251a34cf5.png)


输入：
```cpp
Peking University is set up at 1898.
```
输出：
```cpp
4
```




NoteSC++

C25-小码争霸赛-1

-----------试卷题目下载链接-----------


一、上周HOMEWORK










二、本次HOMEWORK





输入：

输出：