HDU 2222 AC Automaton template problem

Title: http://acm.hdu.edu.cn/showproblem.php?pid=2222

AC Automaton Template problem

1#include <stdio.h>2#include <string.h>3#include <queue>4 using namespacestd;5 Charkey[ -];6 Chardes[1111111];7 structnode{8Node *fail;9Node *next[ -];Ten     intCNT; One node () { AFail =NULL; -CNT =0; -          for(inti =0;i< -; i++) theNext[i] =NULL; -     } - }; -Node *Root; + voidInsertChar*str) { -Node *head =Root; +     intLen =strlen (str); A      for(inti =0; i<len;i++){ at         inttemp = str[i]-'a'; -         if(Head->next[temp] = =NULL) -Head->next[temp] =Newnode (); -Head = head->Next[temp]; -     } -head->cnt++; in }  - voidbuild () { toQueue<node *>Q; + Q.push (root); -      while(!Q.empty ()) { theNode *head =Q.front (); * Q.pop (); $          for(inti =0;i< -; i++){Panax Notoginseng             if(Head->next[i]! =NULL) { -                 if(Head = =root) { theHead->next[i]->fail =Root; +}Else{ ANode *temp = head->fail; the                      while(Temp! =NULL) { +                         if(Temp->next[i]! =NULL) { -Head->next[i]->fail = temp->Next[i]; $                              Break; $                         } -temp = temp->fail; -                     } the                     if(temp = =NULL) -Head->next[i]->fail =Root;Wuyi                 } theQ.push (head->next[i]); -             } Wu         } -     } About } $ intquery () { -     intLen = strlen (des), ans =0;; -Node *head =Root; -      for(inti =0; i<len;i++){ A         intindex = des[i]-'a'; +          while(Head->next[index] = = NULL && head! =root) theHead = head->fail; -Head = head->Next[index]; $         if(Head = =NULL) theHead =Root; theNode *temp =head; the          while(Temp!=root && temp->cnt!=-1){ theAns + = temp->CNT; -temp->cnt =-1; intemp = temp->fail; the         } the     } About     returnans; the } the intMain () { the     intT; +scanf"%d",&t); -      while(t--){ theRoot =Newnode ();Bayi         intN; thescanf"%d",&n); the          for(inti =0; i<n;i++){ -scanf"%s", key); - Insert (key); the         } the build (); thescanf"%s", des); theprintf"%d\n", query ()); -     }     the     return 0; the}

HDU 2222 AC Automaton template problem