g

#include <iostream>
#include <string>
#include <vector>

class Contact {
    private:
        long int number;
        unsigned int areaCode;
        std::string firstName, lastName, fullName;
    public:
        Contact(const long int, const int, const std::string, const std::string);
        friend std::ostream& operator << (std::ostream &os, const Contact c1);
        std::string getLast  (void) const { return lastName;     }
        std::string getFirst (void) const { return firstName;    }
        char        getLastC (void) const { return lastName[0];  }
        char        getFirstC(void) const { return firstName[0]; }
};

Contact::Contact(const long int n, const int aC, const std::string fN, const std::string lN)
    : number(n), areaCode(aC), firstName(fN), lastName(lN), fullName(firstName+' '+lastName) { }

std::ostream& operator << (std::ostream &os, const Contact c1) {
    return (os << c1.fullName << ": (" << c1.areaCode << ")" << c1.number);
}

void organizeList(std::vector<Contact> &);
void printList(std::vector<Contact>);

int main(void) {
    std::vector<Contact> vContacts;
    Contact c1(9365421, 479, "Nick", "Ashley");
    Contact c2(1010778, 800, "James", "Pac");
    Contact c3(8324561, 671, "Jordan", "Berry");
    vContacts.push_back(c1);
    vContacts.push_back(c2);
    vContacts.push_back(c3);
    organizeList(vContacts);
    printList(vContacts);
    return 0;
}

void organizeList(std::vector<Contact> &c1) {
    std::vector<Contact>::iterator iter = c1.begin();
    std::vector<Contact> temp;
    for(char a = 'A'; a <= 'Z'; ++a) {
        for(iter; iter != c1.end(); ++iter) {
            if((*iter).getLastC() == a)
                temp.push_back(*iter);
        }
    }
    while(!c1.empty())
        c1.pop_back();
    for(iter = temp.begin(); iter != temp.end(); ++iter)
        c1.push_back(*iter);
}

void printList(std::vector<Contact> c1) {
    std::vector<Contact>::iterator iter = c1.begin();
    for(iter; iter != c1.end(); ++iter)
        std::cout << (*iter) << std::endl;
}