Speed Info

#include <iostream>
#include <string>
using namespace std;

int main()
{
    double speed;
    cin >> speed;

    if (speed <= 10)
    {
        cout << "slow" << endl;
    }
    else if (speed <= 50)
    {
        cout << "average" << endl;
    }
    else if (speed <= 150)
    {
        cout << "fast" << endl;
    }
    else if (speed <= 1000)
    {
        cout << "ultra fast" << endl;
    }
    else
    {
        cout << "extremely fast" << endl;
    }

    return 0;
}