Degree of Polynomial

In mathematics, the [degree](https://en.wikipedia.org/wiki/Degree_of_a_polynomial) of polynomials in one variable is the highest power of the variable in the algebraic expression with non-zero coefficient. Chef has a polynomial in one variable $x$ with $N$ terms. The polynomial looks like $A_0\cdot x^0 + A_1\cdot x^1 + \ldots + A_{N-2}\cdot x^{N-2} + A_{N-1}\cdot x^{N-1}$ where $A_{i-1}$ denotes