10815 - Andy's first dictionary/10815.cpp

   1 #include <iostream>
   2 #include <string>
   3 #include <set>
   4 #include <vector>
   5 #include <sstream>
   6 using namespace std;
   7
   8 typedef set<string> words;
   9
  10 int main(){
  11   words w;
  12   string s;
  13   while (getline(cin, s)){
  14     for (int i=0; i<s.size(); ++i){
  15       s[i] = tolower(s[i]);
  16       if (!isalpha(s[i])) s[i] = ' ';
  17     }
  18     stringstream ss(s);
  19     while (ss >> s){
  20       w.insert(s);
  21     }
  22   }
  23   for (words::iterator i = w.begin(); i != w.end(); ++i){
  24     cout << (*i) << endl;
  25   }
  26   return 0;
  27 }