QOJ.ac

QOJ

実行時間制限: 10 s メモリ制限: 1024 MB 満点: 100

#3085. 请使用 FFT

統計

给定三个长度均为 $N$ 的整数序列 $A$、$B$ 和 $C$。对于每个 $k = 1, 2, \dots, N$,求出以下式子的值,结果对 $998244353$ 取模:

$$\sum_{1 \le i \le N} \left( C_i \times \prod_{1 \le j \le k} (A_i + B_j) \right)$$

输入格式

第一行包含一个整数 $N$ ($1 \le N \le 250000$)。 第二行包含 $N$ 个整数 $A_1, A_2, \dots, A_N$ ($0 \le A_i < 998244353$)。 第三行包含 $N$ 个整数 $B_1, B_2, \dots, B_N$ ($0 \le B_i < 998244353$)。 第四行包含 $N$ 个整数 $C_1, C_2, \dots, C_N$ ($0 \le C_i < 998244353$)。

输出格式

对于每个 $k = 1, 2, \dots, N$,输出对应的答案。

样例

样例输入 1

3
1 2 3
4 5 6
7 8 9

样例输出 1

146 1050 8694

Editorials

IDTypeStatusTitlePosted ByLast UpdatedActions
#1019EditorialOpen题解Qiuly2026-02-14 02:07:01View
#189EditorialOpen题解jiangly2025-12-13 00:01:00View

Discussions

About Discussions

The discussion section is only for posting: 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.
  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.