// Example program
#include <iostream>
#include <string>
#include <algorithm>

std::string RequestString(int length, std::string nome)
{
    std::string result;
    while (result.length() <= length)
    {
        std::cout << "Inserisci un testo "<< nome <<" di lunghezza superiore a " << length << "\n";
        std::cin >> result;
    }
    return result;
}

int main()
{
    // stringhe
    std::string a = RequestString(3, "A");
    std::string b = RequestString(3, "B");
    std::string* longString;
    std::string* shortString;


    // controlli lunghezze
    if (a.length() == b.length())
        b += "x";

    // stampo
    std::cout << "Inserite stringhe a = " << a << " b = " << b << "\n";

    longString = (a.length() > b.length()) ? &a : &b;
    shortString = (a.length() < b.length()) ? &a : &b;

    // controllo sottostringa
    if (longString->find(*shortString) != std::string::npos)
        std::cout << " La stringa piu' corta e' una sottostringa della scritta piu' lunga" << "\n";

    // controllo secondo carattere
    size_t n = std::count(a.begin(), a.end(), b[1]);
    std::cout << "il secondo carattere della stringa A e' presente " << n << ((n!=1)?"  volte":" volta")<<" nella stringa piu' lunga.\n";

}