hdu 2072 单词数

#include<iostream>
#include<string>
#include<vector>
#include<sstream>

using namespace std;

int main()
{
vector<string> s;
string s0,s1;
int flag;

while(getline(cin,s0))
{
if(s0=="#")
break;
else
{
s.clear();
istringstream sin(s0);
while(sin>>s1)
{
flag=0;
for(int i=0;i<s.size();i++)
{
if(s[i]==s1)
{
flag=1;
break;
}
}
if(flag==0)
s.push_back(s1);
}
cout<<s.size()<<endl;
}
}
return 0;
}

#include <iostream>
#include <set>
#include <string>
#include <sstream>// 不要忘记了

using namespace std;

int main() {
string art;
while(getline(cin,art) && art != "#"){
istringstream stream(art);
string word;
set<string> map;
while(stream >>word){
map.insert(word);
}
cout <<map.size() <<endl;
}
return 0;
}