18507번 - One Root 출처다국어분류

For a fixed n and integers p and q such that |p| ≤ m and |q| ≤ m, how many equations of the form

xⁿ + px + q = 0

have exactly one real root?

The only line of input contains two integers n and m (1 ≤ n, m ≤ 10⁶, n ≥ 2).

Print a single integer: the number of equations having exactly one real root.