fifteen.c - shared from CS50 IDE

fifteen.c

int init(void)
{
    // TODO
    int i;
    int j;
    int board[DIM_MAX][DIM_MAX];
    int x = d*d;
    for ( i = 0; i < d; i ++)
    {
        
        for ( j = 0; j < d; j++)
        {
            x = x-1;
            board[i][j] = x;
            
        }
        
    }
    // Swap 2 and 1
    if ((((d * d) - 1) % 2) != 0)
    {
        int hold = board[d-1][d-2];
        board[d-1][d-2] = board[d-1][d-3];
        board[d-1][d-3] = hold;
    }
    return board[i][j];
}