As we are currently experiencing an overwhelming number of web requests for fetching user submissions, we have temporarily disabled the full submissions list. You must now be logged in to view submissions.
给定两个正整数 $d,k$ ，求出最大的正整数 $x$ ，使得 $x|((a+d)^k-a^k)$ 对所有正整数 $a$ 成立。
第一行两个正整数 $d,k$ 。
一行一个正整数，表示答案。
2 2
4
84623 25861
930853
对于所有数据，保证 $1\le d,k\le 10^{100}$ 。
| 子任务编号 | 特殊性质 | 分值 |
|---|---|---|
| $1$ | $d,k\le 10^7$ | $20$ |
| $2$ | $\gcd(d,210)=1$ | $30$ |
| $3$ | $d,k\le 10^{18}$ | $30$ |
| $4$ | $ $ | $20$ |
时间限制：$\texttt{2s}$
空间限制：$\texttt{512MB}$
The discussion section is only for posting: Editorials, General Discussions (problem-solving strategies, alternative approaches), and Off-topic conversations.
This is NOT for reporting issues! If you want to report bugs or errors, please use the Issues section below.
If you find any issues with the problem (statement, scoring, time/memory limits, test cases, etc.), you may submit an issue here. A problem moderator will review your issue.
Guidelines: