To add the two polynomials, we presume that the singly linked lists have their nodes arranged in decreasing order of the exponents of the variable x. The objective is to create a new list of nodes representing the sum P1 + P2. This is achieved by adding the COEFF fields of the nodes of similar powers of variable x in lists P1 and P2 and adding a new node reflecting this operation in the resultant list P1 + P2. We present below the crux of the procedure. Here, P1 and P2 are the starting pointers of the singly linked lists representing polynomials P1 and P2. Additionally, PTR1 and PTR2 are two temporary pointers initially set to P1 and P2, respectively.  Write procedural code

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