QOJ.ac

QOJ

Time Limit: 1 s Memory Limit: 1024 MB Total points: 100
Statistics

题目描述

给定两个长度为 $2^n$ 的序列 $A,B$,求另一序列 $C$ 使得 $C_k = \displaystyle \sum_{\substack{i \vee j = k\\ i \wedge j = 0}} A_i B_j$。

样例输入

输入的第一行包含一个整数 $n$。

接下来一行,包含 $2^n$ 个整数,描述序列 $A$。

接下来一行,包含 $2^n$ 个整数,描述序列 $B$。

样例输出

输出一行 $2^n$ 个整数,描述序列 $C$。答案取模 $998244353$。

样例数据

样例 1 输入

2
1 2 3 4
5 6 7 8

样例 1 输出

5 16 22 60

样例 2 输入

4
5 8 2 7 1 3 6 4 8 8 1 9 3 3 4 5
8 8 1 6 4 4 3 8 1 9 0 5 3 6 2 7

样例 2 输出

40 104 21 110 28 84 72 189 69 181 18 186 72 178 85 368

子任务

对于 $100\%$ 的数据,$1 \leq n \leq 19, 0 \leq A_i,B_i < 998244353$。

Discussions

About Discussions

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.

Open Discussions 0
No discussions in this category.

Issues

About Issues

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:

  1. This is not a place to publish discussions, editorials, or requests to debug your code. Issues are only visible to you and problem moderators.
  2. Do not submit duplicated issues. Submitting multiple issues may cause your account to be banned.
  3. Issues must be filed in English or Chinese only.
Active Issues 0
No issues in this category.
Closed/Resolved Issues 0
No issues in this category.