Hdu_2072 _ count the number of words _ set _ detection string

Hdu_2072 _ count the number of words _ set _ detection string

 

Train of Thought: input a line of words to check the number of different words

The key lies in two points: ① do not repeat words ② pay attention to spaces

Self-Use As a set, the first point has been removed. Then, use sstream (see www.bkjia.com) to remove spaces and count.

The Code is as follows:

 

# Include

 
  
# Include

  
   
# Include

   
    
// Set version # include

    
     
Using namespace std; const int maxn = 1000; set

     
      
Dic; int main (void) {string s; while (getline (cin, s) {dic. clear (); // if (s = #) break; stringstream ss; ss. str (s); string buf; while (ss> buf) dic. insert (buf); cout <

      
        Solve the problem by using a normal processing string as follows: