// string-loop
#include <iostream>
using namespace std;
int main()
{
    string name;
    cout << "Enter a name: ";
    getline(cin, name);
    // Remove all occurrences of h/w/H/W from string
    for(int i = 0; i < name.size(); )
    {
        cout << "Considering i=" << i
             << ": " << name.at(i) << endl;
        switch(name.at(i))
        {
        case 'h': case 'w':
        case 'H': case 'W':
            //cout << "*** BAM ***\n";
            name.erase(i,1);
            break;
        default:
            i++;
        }
    }
    cout << name << endl;
    return 0;
}

#include <iostream>
using namespace std;
int main()
{
    string name = "Rodolfo";
    // Convert to upper case, one char at a time.
    for(int i = 0; i < name.size(); i++)
    {
        name.at(i) = toupper(name.at(i));
    }
    cout << name << endl;
    return 0;
}