HDU5769-Substring-多校#4-1006-后缀数组

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HDU 4691（多校第九场1006）后缀数组

...还能多说什么. 眼角一滴翔滑过. 一直以为题意是当前串与所有之前输入的串的LCP...然后就T了一整场. 扫了一眼标程突然发现他只比较输入的串和上一个串? 我心中突然有千万匹草泥马踏过. 然后随手就A了... 先RMQ预处理一下,复杂度为nlogn ,然后每次LCP询问只需O(1)的复杂度. #include <set> #include <map> #include <stack> #include <cmath> #include <queu…

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