시간 제한 | 메모리 제한 | 제출 | 정답 | 맞힌 사람 | 정답 비율 |
---|---|---|---|---|---|
2 초 | 512 MB | 419 | 30 | 19 | 7.917% |
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.
2 4
5
3 5
96