static private CanPut ( int sudoku, int x, int y, int val ) : bool | ||
sudoku | int | |
x | int | |
y | int | |
val | int | |
리턴 | bool |
static bool CanPut(int[,] sudoku, int x, int y, int val)
{
for (int i = 0; i < BOARD_SIZE; i++)
{
if (sudoku[i, y] == val) // test rows
{
return false;
}
if (sudoku[x, i] == val) // test columns
{
return false;
}
}
// test square
int a = x - (x % 3);
int b = y - (y % 3);
for (int i = a; i < a + 3; i++)
{
for (int j = b; j < b + 3; j++)
{
if (sudoku[i, j] == val)
{
return false;
}
}
}
return true;
}