poj2503Babelfish

来源：互联网发布：python做app 编辑：程序博客网时间：2024/05/22 12:07
#include <iostream>#include <cstring>#include <cstdio>#include <cstdlib>using namespace std;const int N=200005;//空间开大了int chd[N][26];//存储节点编号char v[N][26];//串尾节点标记//对于map<string,int>为int v[][]int ID[128];//每个字母的IDint sz;//节点数void init(){    memset(chd, 0, sizeof(chd));    memset(v, 0, sizeof(v));    sz= 1;    for (int i = 0; i < 26; i++)        ID[i + 'a'] = i;}void insert(char *s,char *w){//as map<string string>    int cur=1;    for(int i=0;s[i];++i){        if(!chd[cur][ID[s[i]]])            chd[cur][ID[s[i]]]=++sz;        cur=chd[cur][ID[s[i]]];    }    strcpy(v[cur],w);}/*相当于map<string,int>void insert(char *s, intw) {intcur = 1;for (inti= 0; s[i]; i++) {if (!chd[cur][ID[s[i]]])chd[cur][ID[s[i]]] = ++sz;cur = chd[cur][ID[s[i]]];}v[cur] = w;}*/int query(char *s){    int cur=1;    for(int i=0;s[i];++i){        if(!chd[cur][ID[s[i]]])            return -1;        cur=chd[cur][ID[s[i]]];    }    return cur;}int main(){    char a[30],b[30],tmp[30];    init();    while(gets(tmp)&&tmp[0]!='\0'){//读入问题,才发现基础差的要命            sscanf(tmp,"%s %s",a,b);            insert(b,a);//////////////////////////////////////////////////the foreign string is the key    }    while(scanf(" %s",tmp)==1){    int k=query(tmp);    if(k==-1)        printf("eh\n");    else printf("%s\n",v[k]);    }    return 0;}
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