PracticeFinal2.cpp

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

bool validate_input(string name)
{
    bool flag = true;
    for(int sub = 0; sub < name.length(); sub++)
    {
        if(!isalpha(name[sub]))
        {
            flag = false;
            break;
        }

    }
    return flag;

}

bool is_odd(string name)
{
    bool flag = false;
    if(name[0] % 2 == 1)
        flag = true;

    return flag;

}

int main()
{
    string name;
    cout << "Enter your first name\n";
    cin >> name;



    if(validate_input(name))
    {
        cout << "Your nickname is:\n";
        if(is_odd(name))
        {
            cout << "Big ";
            for(int sub = 0; sub < 3; sub++)
            {
                cout << name[sub];
            }
            cout << endl;
        }
        else
            {
            cout << "Lil " ;
            for(int sub = 0; sub < 4; sub++)
            {
                cout << name[sub];
            }
            cout << endl;
        }

    }
    else
    {
        cout << "Only letters are allowed.\n";
    }

    return 0;
}