help regarding sorting strings

[sdarifi]

i am trying to read a file and sorting it alphabetically, i do not know how to tackle this issue.

so i am reading a file that contains , States, counties, and cities. and i need to sort the State alphabetically. can you please guide on how to solve this? i do not use vector.

i have tried this:

struct state {
   string name; //name of state
   struct county *c; //name of counties
   int counties; //number of counties in state
   int population; //total population of state
bool operator< (const state& rhs) {
            return lexicographical_compare(name.cbegin(), name.cend(), rhs.name.cbegin(), rhs.name.cend());
                }   
 
        bool operator== (const state& rhs) {
                    return name == rhs.name;
                        }    

}; 

void sorting(struct state* array, int x){ 

sort(begin(array), end(array));

for(int i=0; i<x; i++){
   cout << array[i].name << endl;
}

}

those are the errors i get:

t2.cpp: In member function ‘bool state::operator<(const state&)’:
t2.cpp:22:45: error: ‘std::string’ has no member named ‘cbegin’
return lexicographical_compare(name.cbegin(), name.cend(), rhs.name.cbegin(), rhs.name.cend());
^
t2.cpp:22:60: error: ‘std::string’ has no member named ‘cend’
return lexicographical_compare(name.cbegin(), name.cend(), rhs.name.cbegin(), rhs.name.cend());
^
t2.cpp:22:77: error: ‘const string’ has no member named ‘cbegin’
return lexicographical_compare(name.cbegin(), name.cend(), rhs.name.cbegin(), rhs.name.cend());
^
t2.cpp:22:96: error: ‘const string’ has no member named ‘cend’
return lexicographical_compare(name.cbegin(), name.cend(), rhs.name.cbegin(), rhs.name.cend());
^
t2.cpp: In function ‘void sorting(state*, int)’:
t2.cpp:182:17: error: ‘begin’ was not declared in this scope
sort(begin(array), end(array));
^
t2.cpp:182:29: error: ‘end’ was not declared in this scope
sort(begin(array), end(array));