P25071 [AtCoder] Powers
提高-
题目描述

Problem Statement

Given are integer sequence of length $N, A = (A_1, A_2, \cdots, A_N)$, and an integer K.
For each X such that $1 \le X \le K,$ find the following value:
$\left(\displaystyle \sum_{L=1}^{N-1} \sum_{R=L+1}^{N} (A_L+A_R)^X\right) \bmod 998244353$

Input

Input is given from Standard Input in the following format:
N K
$A_1 A_2 \cdots A_N$

Output

Print K lines.
The X-th line should contain the value $\left(\displaystyle \sum_{L=1}^{N-1} \sum_{R=L+1}^{N} (A_L+A_R)^X \right) \bmod 998244353$.

Constraints

  • All values in input are integers.
  • $2 \le N \le 2 \times 10^5$
  • $1 \le K \le 300$
  • $1 \le A_i \le 10^8$

Sample Input 1

3 3
1 2 3

Sample Output 1

12
50
216

In the 1-st line, we should print (1+2)^1 + (1+3)^1 + (2+3)^1 = 3 + 4 + 5 = 12.
In the 2-nd line, we should print (1+2)^2 + (1+3)^2 + (2+3)^2 = 9 + 16 + 25 = 50.
In the 3-rd line, we should print (1+2)^3 + (1+3)^3 + (2+3)^3 = 27 + 64 + 125 = 216.

Sample Input 2

10 10
1 1 1 1 1 1 1 1 1 1

Sample Output 2

90
180
360
720
1440
2880
5760
11520
23040
46080

Sample Input 3

2 5
1234 5678

Sample Output 3

6912
47775744
805306038
64822328
838460992

Be sure to print the sum modulo 998244353.

输入格式

见题面 Input 部分

输出格式

见题面 Output 部分

样例输入
3 3 1 2 3
样例输出
12 50 216