URAL1025[Democracy in danger]

水题,不说。


CODE:


/*


PROGRAM: $PROGRAM


AUTHOR: Su Jiao


DATE: 2010-3-18


DESCRIPTION:


$DESCRIPTION


*/


#include <iostream>


using std::cin;


using std::cout;


#include <fstream>


using std::ifstream;


using std::ofstream;


#include <sstream>


using std::stringstream;


using std::endl;


#include <vector>


using std::vector;


#include <string>


using std::string;


#include <stack>


using std::stack;


#include <queue>


using std::queue;


#include <map>


using std::map;


using std::pair;


using std::make_pair;


#include <algorithm>


using std::sort;


#include <cassert>


//using std::assert;


 


class Application


{


      int K;


      vector<int> vote;


      public:


      Application()


      {


                    cin>>K;


                    vote.resize(K);


                    for (int i=0;i<K;i++) cin>>vote[i];


      }


      int run()


      {


          sort(vote.begin(),vote.end());


          int answer=0;


          for (int i=0;i<(K+1)/2;i++)


              answer+=(vote[i]+1)/2;


          cout<<answer<<endl;


          return 0;


      }


};


 


int main()


{


    Application app;


    return app.run();


}