03. Largest 3

#include <iostream>
#include <sstream>
#include <string>
#include <vector>
#include <set>

using namespace std;

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

    istringstream ss(line);

    set<double> numbers;

    double number;

    while (ss >> number) {
        numbers.insert(number);
    }

    int counter = 0;

    for (auto rit = numbers.rbegin(); rit != numbers.rend(); rit++) {
        if (counter++ == 3) {
            break;
        }
        cout << *rit << " ";
    }

    return 0;
}