Polynomials Evaluation Data Structure

A C++ program to calculate the coefficient and exponent of polynomials using linked list

Terminal's Look

there are 2 text files containing a number each row.
--num1.txt--
6
4
3
2
5
1
represents 6x^4 + 3x^2 + 5x

--num2.txt--
9
7
8
5
4
4
6
2
represents 9x^7 + 8x^5 + 4x^4 + 6x^2

adding their coefficients and exponentials together becomes 9x^7 + 8x^5 + 10x^4 + 9x^2 + 5x^1

--result.txt--
9
7
8
5
10
4
9
2
5
1