Dynamically create a one-dimensional number of groups
INT * Arr; // it can be any other type (char, float ...) arr = new int [n]; // N shop be integer variable
Dynamically create two-dimensional array int ** arr; int N, m; cin >> n >> m; arr = new int * [n]; for (int i = 0; i
original:
http://www.cpp-home.com/fileio_tutorial.php
