Write a function to add two polynomials. Do not destroy the input. Use a linked list implementation

Posted 2023-02-15

Write a function to add two polynomials. Do not destroy the input. Use a
linked list implementation. If the polynomials have M and N terms, respectively,
what is the time complexity of your program?
Input Specification:
1. All the coefficients of polynomials are integers;
2. The coefficients and exponents of each polynomial is stored in increasing order of
exponents to a file, e.g. the following file
4,2
2,3
1,5
represents the polynomial x^5+2x^3+4x^2;
3. To read the file including coefficients and exponents, the filename as the
parameter is presented when the program is executed as the following figure:
where “HW1” is the program name (when the source code is submitted to me in
an email as the attached file, the filename must be “HW1_Student ID.c”, e.g.
HW1_0902200102.c), “polya.txt” and “polyb.txt” are the names of files including
coefficients and exponents of two polynomials, and the file “polyc.txt” is used to
store the sum.
4. To implement the function that the filename is provided as the program
parameter, we may use the following code:

#include <stdio.h>
/* All the program parameters, as the strings, are stored in
argv[], and argv[0] is the name of program. */
int main(int argc, char *argv[])

FILE * file;
file = fopen(argv[1], “r”);
……
fclose(file);
return 0;

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