// ex5.cpp

#include <string>
using namespace std;

const maxrows=5;
const maxcolumns=10;

struct mapitem 
{
  int row,column;
  string line;
  mapitem(int _row,int _column) {row=_row,column=_column,line='\0';}
};

typedef mapitem * col[maxcolumns];
typedef col * gridtype[maxrows];

int main(int argc, char* argv[])
{  
  gridtype grid;
  int rowindex,colindex;

  for (rowindex=0;rowindex < maxrows; rowindex++) {
  // Allocate memory for columns in each row 
    grid[rowindex] = new col[maxcolumns];
	for (colindex=0;colindex < maxcolumns;colindex++)
	{
	// Hook up the grid to a new item
    *(grid[rowindex])[colindex] = new mapitem(rowindex,colindex);
	}
  }

  // Set the string for the top left corner etc
  (*grid[0][0])->line="Top Left Corner";
  (*grid[maxrows-1][0])->line="Bottom Left Corner";
  (*grid[0][maxcolumns-1])->line="Top Right Corner";
  (*grid[maxrows-1][maxcolumns-1])->line="Bottom Right Corner";
  return 0;
}