因为 num[i] 表示既是前缀又是后缀的子串个数(前后缀可以重叠)
by Anli_li_father @ 2023-08-02 11:48:55
@[大眼仔Happy](/user/537046)
有没有一种可能，字符串本身也是其前后缀
by so_find_skind @ 2023-08-02 12:02:54
@[zhezhikongdanruxue](/user/756179) @[Anli_li_father](/user/805653) 好吧，我怕是与题目的 $\text{num}[i]$ 弄混淆了
by 大眼仔Happy @ 2023-08-02 14:16:22
谢谢大佬
by 大眼仔Happy @ 2023-08-02 14:16:36