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

int main()
{
    string s1 = "Have an exceptionally nice day";
    cout << s1 << endl;
    cout << "s1.size()=" << s1.size() << endl;
    cout << "s1.capacity()=" << s1.capacity() << endl;
    cout << "s1.max_size()=" << s1.max_size() << endl << endl;

    s1.reserve(50);
    cout << s1 << endl;
    cout << "s1.size()=" << s1.size() << endl;
    cout << "s1.capacity()=" << s1.capacity() << endl << endl;

    s1.reserve(5);
    cout << s1 << endl;
    cout << "s1.size()=" << s1.size() << endl;
    cout << "s1.capacity()=" << s1.capacity() << endl << endl;

    s1.reserve(75);
    cout << s1 << endl;
    cout << "s1.size()=" << s1.size() << endl;
    cout << "s1.capacity()=" << s1.capacity() << endl << endl;

    s1.resize(19);
    cout << s1 << endl;
    cout << "s1.size()=" << s1.size() << endl;
    cout << "s1.capacity()=" << s1.capacity() << endl << endl;

    s1.shrink_to_fit();
    cout << s1 << endl;
    cout << "s1.size()=" << s1.size() << endl;
    cout << "s1.capacity()=" << s1.capacity() << endl << endl;

    s1.clear();
    cout << s1 << endl;
    cout << "s1.size()=" << s1.size() << endl;
    cout << "s1.capacity()=" << s1.capacity() << endl << endl;

    cout << boolalpha << s1.empty() << endl;
}