1999

In the modern time, Search engine came into the life of everybody like Google, Baidu, etc. Wiskey also wants to bring this feature to his image retrieval system. Every image have a long description, w...

#include<bits/stdc++.h> using namespace std; #define N 4000005 int cnt; struct AC { int t[N][26]; int e[N]; int fail[N]; void ins(char *s) { int p=0; for(i...