wielkosc liter

#include <iostream>
#include <algorithm>

using namespace std;

int main()
{
    string napis= "Ala ma kota";

    transform(napis.begin(),napis.end(),napis.begin(),::toupper);
    cout<<napis;

    cout<<endl<<endl;
    transform(napis.begin(),napis.end(),napis.begin(),::tolower);
    cout<<napis;
    cout<<endl<<endl;
    return 0;
}