题目描述
Problem Statement
Given is an integer N.
Snuke is going to do the procedure below.
- Let x be a variable and initialize it with a random integer between 0 and N (inclusive). For each $0 \leq i \leq N, x=i$ is chosen with probability A_i/10^9.
- Repeat the following operation K times.
- With probability x/N, decrease the value of x by 1; with probability 1-x/N, increase it by 1.
(Here, note that x will still be between 0 and N after the operation.)
For each $i=0,1,\cdots,N,$ find the probability, modulo 998244353, that x=i after the procedure.
Definition of probability modulo 998244353
It can be proved that the sought probabilities are always rational numbers. Additionally, under the Constraints of this problem, when representing each of them as an irreducible fraction $\frac{P}{Q}$, it can be proved that $Q \neq 0 \pmod{998244353}. Thus, there uniquely exists an integer R$ such that $R \times Q \equiv P \pmod{998244353}, 0 \leq R < 998244353.$ Answer with this R.
Input
Input is given from Standard Input in the following format:
N K
$A_0 A_1 \cdots A_N$
Output
For each $i=0,1,\cdots,N$, print the probability, modulo 998244353, that x=i after the procedure.
Constraints
- $1 \leq N \leq 100000$
- $0 \leq A_i$
- $\sum_{0 \leq i \leq N}A_i = 10^9$
- $1 \leq K \leq 10^9$
- All values in input are integers.
Sample Input 1
2 1
0 1000000000 0
Sample Output 1
499122177 0 499122177
First, x is always initialized with x=1.
In the subsequent operation, the value of x is decreased by 1 with probability 1/2 and increased by 1 with probability 1/2.
Eventually, we will have x=0,1,2 with probabilities 1/2,0,1/2, respectively.
Sample Input 2
4 2
200000000 200000000 200000000 200000000 200000000
Sample Output 2
723727156 598946612 349385524 598946612 723727156
Sample Input 3
10 100
21265166 263511538 35931763 26849698 108140810 134702248 36774526 147099145 58335759 4118743 163270604
Sample Output 3
505314898 24510700 872096939 107940764 808162829 831195162 314651262 535843032 665830283 627881537 696038713
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分