训练内容:

二分

讲解:

视频讲解:https://www.bilibili.com/video/BV1JD4y1v78o/?vd_source=232961d4b608f3ba918fab5fffddd1ef

博客:https://www.cnblogs.com/qswg/p/6251887.html (网上很多,可以多看看)

作业: http://42.193.50.191/homework/6385eadee33415a851181651

额外题单: http://42.193.50.191/training/61d2be109583df9f1d5e6d9c

https://www.luogu.com.cn/training/111 (建议先多想想,实在不会就看题解,以及就算写出来了,也建议要看看题解,学习更优秀的写法)

要求:

周赛别暴0

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