hdu 1075 字典树

输入有点繁琐

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
struct node {
    struct node *child[26];
    char *str;
}*root;
void insert(char *c1,char *c2)
{
    int len=strlen(c2);
    struct node *cur,*newnode;
    cur=root;
    for(int i=0;i<len;i++)
    {
        if(cur->child[c2[i]-'a']!=0)
            cur=cur->child[c2[i]-'a'];
        else
        {
            newnode = new struct node;
            cur->child[c2[i]-'a']=newnode;
            for(int j=0;j<26;j++)
                newnode->child[j]=0;
            newnode->str=NULL;
            cur=newnode;
        }
    }
    cur->str=new char[15];
    strcpy(cur->str,c1);
}
void find_print(char *c2)
{
    int len=strlen(c2);
    struct node *cur;
    cur=root;
    if(!len) return ;
    for(int i=0;i<len;i++)
    {
        if(c2[i]<'a'||c2[i]>'z'||cur->child[c2[i]-'a']==0)
        {
            printf("%s",c2);
            return ;
        }
        else cur=cur->child[c2[i]-'a'];
    }
    if(cur->str!=NULL)
            printf("%s",cur->str);
    else printf("%s",c2);
}
int main()
{
    char s[15],temp[3005],c1[15],c2[15];
    root=new struct node;
    for(int i=0;i<26;i++)
        root->child[i]=0;
    scanf("%s",temp);
    while(scanf("%s",c1)&&strcmp(c1,"END")!=0)
    {
        scanf("%s",c2);
        insert(c1,c2);
    }   
    scanf("%s",temp);
    getchar();
    while(gets(temp)&&strcmp(temp,"END")!=0)
    {
        int len=strlen(temp);
        int num=0;
        bool flag=false;
        for(int i=0;i<len;i++)
        {
            if(temp[i]>='a'&&temp[i]<='z')
            {
                if(flag==false)
                    flag=true;
                s[num++]=temp[i];     
            }
            else
            {
                if(flag)
                {
                    flag=false;
                    s[num]='\0';
                    num=0;
                    find_print(s);
                }
                printf("%c",temp[i]);
            }
        }
        if(flag)
        {
            s[num]='\0';
            find_print(s);
        }
        printf("\n"); 
    }
    return 0;
}