标签:style blog http color java os io for
3 AA BB CC ooxxCC%dAAAoen....END
AA: 2 CC: 1
1 #include <iostream> 2 #include <cstdio> 3 #include <cstring> 4 #include <cmath> 5 #include <algorithm> 6 #include <climits> 7 #include <vector> 8 #include <queue> 9 #include <cstdlib> 10 #include <string> 11 #include <set> 12 #include <stack> 13 #define LL long long 14 #define INF 0x3f3f3f3f 15 using namespace std; 16 struct trie{ 17 int wd[28],fail,index; 18 void init(){ 19 memset(wd,0,sizeof(wd)); 20 fail = index = 0; 21 } 22 }; 23 trie dic[100000]; 24 int tot,n,cnt[1010]; 25 char word[1010][60]; 26 char web[2001000]; 27 void insertWd(int root,int id,char *s){ 28 for(int i = 0; s[i]; i++){ 29 int k = s[i]-‘A‘; 30 if(!dic[root].wd[k]) 31 dic[root].wd[k] = tot++; 32 root = dic[root].wd[k]; 33 } 34 dic[root].index = id; 35 } 36 void build(int root){ 37 queue<int>q; 38 q.push(root); 39 int u,v,i,j; 40 while(!q.empty()){ 41 u = q.front(); 42 q.pop(); 43 for(i = 0; i < 28; i++){ 44 if(!dic[u].wd[i]) continue; 45 if(!u) dic[dic[u].wd[i]].fail = 0; 46 else{ 47 v = dic[u].fail; 48 while(v && !dic[v].wd[i]) v = dic[v].fail; 49 if(dic[v].wd[i]) dic[dic[u].wd[i]].fail = dic[v].wd[i]; 50 else dic[dic[u].wd[i]].fail = 0; 51 } 52 q.push(dic[u].wd[i]); 53 } 54 } 55 } 56 void query(int root,char *s){ 57 for(int i = 0; s[i]; i++){ 58 int k = s[i]-‘A‘; 59 if(k < 0 || k > 26) {root = 0;continue;} 60 while(root && !dic[root].wd[k]) root = dic[root].fail; 61 root = dic[root].wd[k]; 62 if(root){ 63 int v = root; 64 while(v && dic[v].index){ 65 cnt[dic[v].index]++; 66 v = dic[v].fail; 67 } 68 } 69 } 70 } 71 int main() { 72 int i,root; 73 while(~scanf("%d",&n)){ 74 tot = 1; 75 root = 0; 76 for(i = 0; i < 100000; i++) 77 dic[i].init(); 78 memset(cnt,0,sizeof(cnt)); 79 for(i = 1; i <= n; i++){ 80 scanf("%s",word[i]); 81 insertWd(root,i,word[i]); 82 } 83 build(root); 84 scanf("%s",web); 85 query(root,web); 86 for(i = 1; i <= n; i++){ 87 if(cnt[i]) printf("%s: %d\n",word[i],cnt[i]); 88 } 89 } 90 return 0; 91 }
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标签:style blog http color java os io for
原文地址:http://www.cnblogs.com/crackpotisback/p/3901120.html