issue with text file reading and emty space passing in dynamic array - c++

Question

I need help in c++ with reading text from file into dynamic array.
File
Regbis
Vardenis Paverdenis
Jonas Puikuolis
Gediminas Jonaitis
Futbolas
Tadas Pilkius
Justas Julis
Tenisas
Ricerdas Berankis
I tried like this and another way with while and getline s.empty but it didn't work for me.
using namespace std;
struct struktura{
char team;
char lastname;
char firstname;
} sarasas[999];
int main()
{
char x [200];
int kiek;
ifstream duomenys;
duomenys.open("duom.txt");
int row, col;
while (!duomenys.eof())
{
cout << "How many teams" << endl;
cin >> row;
int **a = new int *[row];
for (int i = 0; i < row; i++)
{
cin >> col;
a[i] = new int[col];
}
for (int i = 0; i < row; i++)
{
for (int j = 0; j < col; j++)
{
duomenys >> a[i][j];
cout << a[i][j] << " ";
}
cout << endl;
}
}
system("Pause");
return 0;
}

Answer 1

Okay, this has quite a few problems. I'd start with using std::string for the strings, and std::vector for the dynamic array.
Then I'd work at defining the data structures at least halfway reasonably. I think the general idea is something like this:
struct team {
std::string name;
std::vector<std::string> players;
};
Then I'd define an operator>> for a team, something like this:
std::istream &operator>>(std::istream &is, team &t) {
std::vector<std::string> players;
std::string temp;
// If we can't read a team name, return signaling failure:
if (!std::getline(is, temp))
return is;
// save the team name
t.name = temp;
// and read the player's names:
while (std::getline(is, temp)) {
if (temp.empty()) // empty line--end of this team's players
break;
players.push_back(temp);
}
t.players = players; // Write the player's names into the destination
is.clear(); // and signal success, since we read a team's data
return is;
}
From there, we can read all the teams in a file:
std::ifstream in("teams.txt");
std::vector<team> teams { std::istream_iterator<team>{in},
std::istream_iterator<team>{} };