HDOJ   2072   单词数

题目：​​http://acm.hdu.edu.cn/showproblem.php?pid=2072​​

C语言的方式，gets()读入空格

#include<stdio.h>
 #include<string.h>
 #define N 10000
 char  article[N],tmp[101],word[N][101];
 int main()
 {   int len,pos,k,cnt;
     while(gets(article)!=NULL)
     {
        if(article[0]=='#') break;
        cnt=0;
        len=strlen(article);
        pos=0;
        while(pos<len)
        {
            sscanf(article+pos,"%s",tmp);
            for(k=0;k<cnt;k++)
                   if(strcmp(word[k],tmp)==0)
                         break;
            if(k==cnt) 
                 strcpy(word[cnt++],tmp);
            pos+=strlen(tmp)+1;
        }
        printf("%d\n",cnt);
     }return 0;
 }
 ************************************************c++使用set挺给力
#include <set>
 #include <string>
 #include <iostream>using namespace std;
int main(void)
 {
     set <string> st;
     string s = "";
       while ((c = cin.get()) != '#')
     {
         s += c;
         while (c != '\n')
         {
             while ((c = cin.get()) != ' ' && c != '\n')
                 s += c;
             if (s.length()) st.insert(s);
             s = "";
         }
         cout << st.size() << endl;
         st.clear();
     }
     return 0;
 }