Error when resizing vector of object - c++

Question

I am trying to create a vector of objects but i have some issues. I can't push_back over 19 objects to my vector because it shows up an error message of bad_alloc.
I try to resize my vector with resize() or reserve() but still nothing.
For resize(), I read that you need to provide 2 arguments to resize a vector.But still nothing.
When I try to use it without push_back it shows error: expected primary-expression before ')' token.
#define N 10 //ari8mos seirwn tou xarth
#define M 10 //ari8mos sthlwn tou xarth
#define TREAS 100//posothta 8usaurou
#define PORTS 100//ari8mos limaniwn
extern void ships(map (&myArray)[N][M], vector<ship> &myShips);
void ships(map (&myArray)[N][M], vector<ship> &myShips)
{
int i,j,y;
srand ( time(NULL) );
//myShips.reserve(21);
//myShips.resize(20,ship);
cout << myShips.capacity() << endl;
int x=0;
for( i = 0; i <19 ; i++){
myShips.push_back(pirate(rand() % N,rand() % M,100,100,100,1,'#',myArray,myShips));
}
for( i=0;i<myShips.size();i++ ){
cout << myShips[i].get_symbol() << " ";
}
}
here is the rest of code to help you understand:
class ship
{
protected:
int i,j,x2,y2;
//vector<vector<map> > myArray;
//ship (&myShips)[N][M];
int x;
int y;
map (myArray)[N][M];
vector<ship> myShips;
int max_resistance;
int current_resistance;
int speed;
int reserve_treasure;
char symbol;
public:
ship(int x_, int y_, int max_res, int cur_res, int res_treas, int sp, char sy, map (&myArr)[N] [M], vector<ship> &Ship)
:x(x_)
,y(y_)
,max_resistance(max_res)
,current_resistance(cur_res)
,reserve_treasure(res_treas)
,speed(sp)
,symbol(sy)
,myArray(myArr)
,myShips(Ship)
{cout << "eimai o 'ship' 2" << endl; }
~ship() {}
int get_x();
int get_y();
float get_max_resistance();
float get_current_resistance();
int get_speed();
float get_reserve_treasure();
char get_symbol();
void set_x(int pos_x);
void set_y(int pos_y);
void set_max_resistance(float maxres);
void set_current_resistance(float curres);
void set_speed(int sp);
void set_reserve_treasure(float restrea);
void set_symbol(char sy);
void movement();
void operation();
};
int ship::get_x(){
return x;
}
int ship::get_y(){
return y;
}
float ship::get_max_resistance(){
return max_resistance;
}
float ship::get_current_resistance(){
return current_resistance;
}
int ship::get_speed(){
return speed;
}
float ship::get_reserve_treasure(){
return reserve_treasure;
}
char ship::get_symbol(){
return symbol;
}
void ship::set_x(int pos_x){
x = pos_x;
}
void ship::set_y(int pos_y){
y = pos_y;
}
void ship::set_max_resistance(float maxres){
max_resistance = maxres;
}
void ship::set_speed(int sp){
speed = sp;
}
void ship::set_current_resistance(float curres){
current_resistance = curres;
}
void ship::set_reserve_treasure(float restrea){
reserve_treasure = restrea;
}
void ship::set_symbol(char sy){
symbol = sy;
}
class pirate : public ship
{
public:
pirate(int posx, int posy, float mr, float cr, float rt, int spe, char sym, map (&Array)[N] [M],vector<ship> &Ship ):ship(posx,posy,mr,cr,rt,spe,sym,Array,Ship){
cout << "eimai o 'pirate' 1" << endl;
// ship(90,90,1,50,'#',Array,Ship) {//vector<vector<map> > Array, vector<vector<ship> > Ship) {}
};
Hope you can help

Answer 1

Looking through this code, did you create a custom definition for map? Otherwise, if you are trying to create an [N][M] array of Map objects, you are missing the type declaration of map. e.g. map<int,string>
If you are trying to use map as a multidimensional array, this is not what std::map is for. Map is a generic container for storing key/value pairs.