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();

}