/* Returns a boolean which indicates whether it will be legal to assign
num to the given row,col location. */
bool isSafe(int grid[N][N], int row, int col, int num)
{
/* Check if 'num' is not already placed in current row,
current column and current 3x3 box */
return !UsedInRow(grid, row, num) &&
!UsedInCol(grid, col, num) &&
!UsedInBox(grid, row - row%3 , col - col%3, num);
}
///\param puzzle The respective puzzle
///\param Row
///\param Column
///\param Number
int isSafe(int puzzle[SizeOfPuzzle][SizeOfPuzzle],int row,int col,int num){
int x = boxLength(SizeOfPuzzle);
/** Check if 'num' is not already placed in current row,
current column and current box */
if(UsedInRow(puzzle,row,num) == 0 && UsedInCol(puzzle,col,num) == 0 &&
UsedInBox(puzzle,(row - row%x),(col - col%x),num) == 0) return 1;
return 0;
}
int isSafe(int sudoku[MAX_BOUNDS][MAX_BOUNDS], int row, int col, int num)
{
/* Check if 'num' is not already placed in current row,
current column and current 3x3 box */
if (!UsedInRow(sudoku, row, num) &&
!UsedInCol(sudoku, col, num) &&
!UsedInBox(sudoku, row - row%3 , col - col%3, num)&&
sudoku[row][col]==UNASSIGNED)
return 1;
return 0;
}
bool isSafe(int grid[N][N], int row, int col, int num)
{
return !UsedInRow(grid, row, num) &&
!UsedInCol(grid, col, num) &&
!UsedInBox(grid, row - row%3 , col - col%3, num);
}
