printGrid function
Used for debugging grid
, prints to console a somewhat-grid-shaped
matrix of cell value
Implementation
void printGrid(Grid? grid) {
for (int r = 0; r < 9; r++) {
String row = "";
for (Cell c in grid!.getRow(r)) {
row += ((c.getValue() == 0) ? " " : c.getValue()).toString() + " ";
}
print(row);
}
}