kmp算法的视频讲解：

https://www.bilibili.com/video/av11866460?from=search&seid=5058972752612228463

https://www.bilibili.com/video/av16828557

 

kmp的应用题目：

https://blog.csdn.net/qq_23320955/article/details/79115564

 

kmp求循环节：

https://www.cnblogs.com/zjl192628928/p/9552949.html