Question

C LINKED LIST

#include <stdlib.h>
#include <stdio.h>

//Struct for a polynomial term (double linked list object)

typedef struct Polynomial t_Polynomial;
typedef struct Term
{
// coefficient of the polynomial term associated with the object
int coef;
  
// power of the polynomial term associated with the object
int power;
  
// pointer to the next object (to facilitate a doubly linked list)
struct Term *next;
  
// pointer to the previous object (to facilitate a doubly linked list)
struct Term *prev;
  
// pointer to the Doubly Linked List this object is in (so we don't lose it)
struct Polynomial *parent;
  
} t_Term;

// Struct for the polynomial (double linked list, list)

typedef struct Polynomial
{
// number of items in the list
int numTerms;
  
// pointer to the first term in the list
struct Term *head;
  
// pointer to the last term in the list
struct Term *tail;
  
} t_Polynomial;

COMPLETE THE BELOW FUNCTION- C only
// Allocate space for a new polynomial term, set the coefficient and power values, set the next, prev, and parent pointers to be NULL, and then return a pointer to the allocated and initialized memory.

t_Term *
Create_Polynomial_Term(int coefficient, int power)
{
return NULL;
}

Answer 1

t_Term *Create_Polynomial_Term(int coefficient, int power)
{
    //you need to include 'stdlib' header file before using malloc
    t_Term *newTerm=(t_Term*)malloc(sizeof(t_Term));//malloc return a void type dynamic memory of provide size(t_term)we need to type cast it in requiured type(t_Term *)
    newTerm->coef=coefficient;
    newTerm->power=power;
    newTerm->prev=newTerm->next=NULL;
    newTerm->parent=NULL;
    if(newTerm)//check if memory is successfull allocated by malloc to newTerm;
    {
        return newTerm;
    }
    printf("\n!!..Fail to allocate dynamic memory..!!\n");
    return NULL;
}