Concept: Adding Two Polynomials Using Linked List


Introduction: Adding two polynomials using a linked list involves representing each polynomial as a linked list where each node contains the coefficient and exponent of a term. This approach allows efficient manipulation and addition of polynomials.


Steps to Add Two Polynomials:

  • Represent each polynomial as a linked list where each node contains two fields: coefficient and exponent.
  • Traverse both linked lists simultaneously, comparing the exponents of the current nodes.
  • If the exponents are equal, add the coefficients and create a new node with the sum and the common exponent.
  • If one exponent is greater, copy the term with the larger exponent to the result and move to the next node in that list.
  • Continue until all terms from both polynomials are processed.
  • Attach any remaining terms from either polynomial to the result.

Key Observations:

  • Efficiently handles sparse polynomials by skipping zero coefficients.
  • Maintains the order of terms based on descending exponents.
  • Uses dynamic memory allocation, making it flexible for polynomials of varying sizes.

Advantages:

  • Dynamic memory usage ensures efficient handling of large polynomials.
  • Easy to implement and extend for other polynomial operations like subtraction or multiplication.

Disadvantages:

  • Overhead of dynamic memory allocation and pointer management.
  • Requires careful handling to avoid memory leaks.

Time Complexity:

  • O(max(m, n)), where m and n are the number of terms in the two polynomials.