03. Largest 3

#include <iostream>
#include <climits>
#include <set>
#include <string>
#include <vector>
#include <sstream>
#include <list>
#include <algorithm>
using namespace std;

int main()
{
  string buffer;
  getline(cin, buffer);

  istringstream istr(buffer);

  double dbl;
  set<double, greater<double> > occurrences;
  while(istr >> dbl)
    occurrences.insert(dbl);

  size_t count = 3;
  for(auto item : occurrences)
    {
      cout << item << ' ';
      count--;
      if(!count)
        break;
    }
  cout << endl;

  return 0;
}