后缀数组的题是真水

最近发现后缀数组的板子假了,但是做了两题没hack被,一道绿hack了,发现是排序不稳定,但是抱着试试的心态又做一题:https://www.luogu.com.cn/problem/P2408
样例没过,但是AC

%%%%%%%%%%%%%%%%%%%%%%%%%巨佬tql!!!!!!!!!!!!

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